Definition of acoustic in English:

acoustic

adjective əˈkuːstɪkəˈkustɪk

1Relating to sound or the sense of hearing.
声学的；听觉的
dogs have a much greater acoustic range than humans
狗的听觉范围比人大得多。
Example sentencesExamples
- To achieve this coordination, songbirds must open and close their beaks in register with the acoustic frequency of the sound being produced.
- Today, enemy targets can be engaged at ranges where they are seen on an electronic device solely as an item of electromagnetic, infrared, or acoustic data.
- On the other hand, cooling makes acoustic noise, which human beings don't tolerate well.
- Microjets can be powered by compressed air, thermal bubbles, and even acoustic waves.
- But very sensitive hearing is necessary to hear all the acoustic cues in speech sounds.
- Thus, territorial male bullfrogs do not appear to assess an opponent's fighting ability based solely on the fundamental frequency of acoustic signals.
- The place has been designed with a great acoustic sense.
- To find out, the research team devised an experiment using an electronic shaker that converts acoustic sounds into vibrations.
- As it happens, these neurons are also very sensitive to the acoustic boundaries between speech sounds, as are monkeys and human infants.
- It was an excellent environment for the seismic acoustic and infrared passive sensors once you could get them into the ground.
- Other acoustic experiences, such as the hearing of human voices, may have been due to direct electric stimulation of the auditory cortex.
- At 50° C an acoustic alarm sounds and the PC system shuts itself down at temperatures above 53° C.
- The hard terrazzo floors and glass walls that border the terraced atrium bounce ambient noise around, creating a sense of acoustic community.
- Such samples display a large number of acoustic modes, with little separation in frequency.
- Their underwater acoustic sense and echo-location skills are legendary.
- Although it is impossible to prevent many diseases that affect the hearing, it is possible to reduce the risk of acoustic trauma (hearing loss from loud noise).
- Quickly sensing the acoustic mismatch, the woman closes the bathroom door, muting the water sounds.
- Once the pod is in acoustic range, Luna will be released in hopes he reunites with his family.
- But even when they separate they remain in acoustic range.
- Until now, no one had measured the absolute acoustic profile of the human body - that is, how the body scatters sound waves independently of where it happens to be.
1. 1.1 (of building materials) used for soundproofing or modifying sound.
  （建筑材料）隔音的；修饰声音的
  acoustic tiles
  隔音砖。
  Example sentencesExamples
  As a patient, you spend a great deal of time, sometimes days at a time in severe situations, flat on your back and staring at stained acoustic tiles.
  Innovations within the product lines of acoustic tile manufacturers allow for a more clean, crisp uncluttered aesthetic.
  Lead paint, which existed mostly on the window frames and in acoustic tile, were carefully removed, and the asbestos is being either removed or encapsulated.
  My room came with a vast stain spreading across the acoustic tiles in the ceiling.
  The ceiling itself mirrored the floor - white acoustic tile, smooth and nearly unbroken.
  Hard, smooth surfaces are more sound-reflective than rough surfaces, or ones that are covered with fabric or acoustic materials.
  Then open-web joists would be installed between the arch segments, and when these were completed acoustic metal decking was attached to the entire assembly.
  Interior surfaces are of pine and birch plywood boarding and acoustic wood louvres.
  A smug smile on her face, she reached up and found her grip on the acoustic tile.
  Apparently this quietness was achieved by using ‘sound-deadening materials, additional door seals and acoustic glass’.
  When noise reduction is the goal, it is important to look at the acoustic tiles' NRC or CAC ratings.
  You should use an airless gun to prime and paint your acoustic ceiling, by angling your gun slightly and spraying it lightly in all directions.
  It pertains to the removal of sprayed asbestos coatings used for thermal and acoustic insulation in buildings and on boilers in industrial plants.
  When acoustic texture material is wet, asbestos fibers are withheld from release into the air.
  But even genuine acoustic foam comes in different fire-resistant grades.
  Then you can start deciding things like where to place furniture and acoustic material, finding a good room that's not a hallway next to a jackhammer and so on.
  The floor was tiled in striking high quality vitreous tiles from Germany and the ceiling lined with acoustic tiles to minimise sound.
  There was a bullet hole in one of the stained acoustic tiles there.
  Highly light reflective, acoustic tiles let more available light reflect back into the room, and save money in utility costs.
  It's not recommended to roll paint on an acoustic ceiling, as it is very porous.
2. 1.2 (of a device or system) utilizing sound energy in its operation.
  （装置，系统）利用声能运作的
  Example sentencesExamples
  Just as camera lenses focus light, acoustic lenses reshape sound, spreading it horizontally to increase the sensation of space.
  That plan will see a ban on driftnets in some EU waters and the use of acoustic devices, or pingers, to repel dolphins and related species from driftnets.
  ‘That tide gauge uses an acoustic device to record the level of the sea's surface,’ she explains.
  At Oxford University, researchers have developed an acoustic camera that builds up visual pictures using sound.
  Just Recently researchers were able to determine the damage to the ship by imaging the sunken liner with an acoustic device known as a sub-bottom profiler.
  This structure is derived from the melon of other odontocetes, and like the melon, may serve as a sort of acoustic lens.
  In contrast to the centrality of the plan, the ceiling evokes the axiality of traditional church spaces and generates a remarkable degree of drama through acoustic devices.
  The system propagates an acoustic energy beam, which the antenna array directs against one of the buildings.
3. 1.3 (of an explosive mine or other weapon) able to be set off by sound waves.
  （爆破性水雷或其他武器）能为声波引爆的
  Example sentencesExamples
  Once this had been introduced, the Germans began to use acoustic mines which were detonated by the sound of a ship's propeller acting on a diaphragm within them.
  Alternately, the use of high power microwave technology, acoustic weapons or nonlethal chemicals might be called for.
  What about nonlethal devices such as acoustic or heat ‘weapons’?
  The start of a three week blockage of the Suez Canal by the Germans placing magnetic and acoustic mines there.
  This is the noise-maker for sweeping acoustic mines.
  So, on the night of 3 November, 1940, magnetic and acoustic mines parachuted down from the Heinkels into the sea close to Milford Haven.
  Agate generates the acoustic signature of any ship in order to trigger acoustic mines.
  During the war, he joined the British Admiralty Research Laboratories where he designed acoustic and magnetic mines.
  When the Second World War broke out, Crick was put to work for the British Navy developing magnetic and acoustic mines for use against German submarines and ships.
  Current capabilities may limit future acoustic weapons to close-in engagements due to range and size of the required equipment.
  At the outbreak of the Second World War, he transferred to the Admiralty, designing magnetic and acoustic mines in which the circuitry would enable enemy ships and sweeps to be distinguished.
2(of popular music or musical instruments) not having electrical amplification.
（流行音乐，乐器）无电声扩音的，原声的
a sad, gentle acoustic ballad
old-fashioned acoustic instruments
Example sentencesExamples
- the Pacific women's trio Manuhiri from New Zealand and Tonga, with their contemporary acoustic music and lush harmonies.
- Appropriately, the movements are accompanied by live electronic and acoustic music.
- I listen to as much acoustic music as electronic these days; I like to keep an open mind.
- For anybody who likes playing the acoustic guitar, this album is a must.
- ‘St Christopher’ gently swings to a jazzy acoustic guitar and resembles nothing less than prime period Joni Mitchell.
- While another strong contender for best track on the album is Black Mountain, a haunting ballad built around a strong acoustic guitar riff and some heady stabs of violin.
- It's a total transition - he's gone from acoustic jazz into electric jazz-rock.
- He also switched between acoustic and electric guitar regularly throughout the night.
- It's a beautiful album, and solo acoustic music doesn't get much better than this.
- This album is pure laid back grooves, acoustic guitars, and blissed out melodies.
- It's been a while since an album has taken such great lengths to show that there is some tangible relation between the worlds of electronic and acoustic music.
- Yay, it's got both acoustic guitars and electronics!
- You got your folky-picked acoustic guitar riff, check.
- Because the band which has defined the sound of contemporary bluegrass over the last decade or so raises the bar in acoustic music with every new record.
- Murray, who is no longer with a band, played a set of rocksteady and reggae tunes on acoustic guitar.
- While many musicians of his generation were turning their back on acoustic music, he remained a loyal folkie.
- It's a superb example of acoustic jazz ensemble playing and lovely multi-horn arranging.
- It's driven by a great bassline, some excellent acoustic guitar riffs and finds Nic Denson's vocals at their most spellbinding.
- In some quieter moments acoustic and slide guitars give them a breezy alt-country feel, while other songs seem designed for dancing.
- Neil Young says Jansch did for the acoustic guitar what Jimi Hendrix did for the electric guitar.

noun əˈkuːstɪkəˈkustɪk

1usually acousticsThe properties or qualities of a room or building that determine how sound is transmitted in it.
（房间或建筑物的）音响效果，音质
the Symphony Hall has perfect acoustics
交响音乐厅有完美的音响效果。
Example sentencesExamples
- The acoustics in this room sometimes are a little deceptive.
- The courtroom was huge, but the acoustics in the room were good and even the slightest bit of breathing could be heard.
- ‘The perfect acoustics in the Heritage Centre make it the ideal venue for storytelling, music and song,’ says Ms Byrne.
- Wavy perforated metal panels aid the room's acoustics yet appear to float off of the brick walls.
- His voice, as heard over the television, is not ideally modulated, but it was probably adapted to the acoustics in the room as he heard his own voice.
- The venue, Victoria Hall, is a beautiful 101-year-old local landmark which has superb acoustics and facilities and lends itself perfectly to this event.
- ‘The acoustics in this house can play tricks with sounds,’ the earl continued.
- They all resonate at the same pitch, yet produce a constant, layered dissonance due to the room's inconsistent acoustics.
- I look at this place and think, ‘jeez, from the perfect acoustics and sightlines of the Roman amphitheaters, it's all been downhill from there.’
- However, the acoustics in that room where dreadful (very high ceiling), but Eric and Andre (2nd guitar and bass) did a good job and put on a good show.
- The acoustics in the living room, thanks to its high ceiling and scant furniture, were incredible.
- But the shape of the rooms created terrible acoustics.
- The Cathedral is a beautiful venue for concerts and recitals and all musicians who play there comment on the wonderful acoustic of the building.
- The beautiful opera house claims to be one of the best in Europe, with perfect acoustics and frescoes painted by Karoly Lotz.
- Luckily the room was not without excellent acoustics (even if her ears were still ringing a bit).
- Good sound guys can figure out the acoustics during sound check relatively quickly, but that's only going to go so far.
- Unfortunately, the debate was hampered by the acoustics in the hall, and many of the participants, myself included, were unable to follow much of what was said.
- The attention to detail is magnificent and manifests itself in everything from the programme to the seating arrangements to the acoustics.
- The acoustics within a room depend on the key issues of reverberation, room shape, and interior noise control.
- The cave's acoustics intensified the sound, causing her to become fully aware of the headache she was trying to ignore in the hope of placating it.
2acousticstreated as singular The branch of physics concerned with the properties of sound.
声学
Tyndall lectured on acoustics
Example sentencesExamples
- Thus, the field of acoustics covers a vast array of different areas of use, and they are constantly expanding.
- Rayleigh developed laboratory courses in heat, electricity and magnetism, properties of matter, optics, and acoustics.
- He specializes in ocean acoustics, signal processing and physical oceanography.
- Since that time, considerable advances have been made in the science of underwater acoustics and the hardware used for the detection of faint signals.
- It was Murray who taught Alexander Graham Bell the basics of acoustics and electricity and thus was the grandfather, if not the father, of the telephone.
- Current advances in science and technology, particularly in the area of acoustics and high technologies, enable a more complete utilization of the audio band.
- In the following article, Matthew Malsky analyzes the effect of digital technology on the science of acoustics in pursuit of a ‘real’ listening experience.
- Unit Conversion Utility - consists of 47 electronic conversions in seven categories useful for forecasting, acoustics and nautical science.
- He studied mathematical physics and acoustics producing a major study in 1862 which looked at musical theory and the perception of sound.
- Swedenborg joined his mysticism with a keen interest in natural science, especially acoustics.
- During World War I Fubini studied the accuracy of artillery fire and these investigations led him on to work on acoustics and electricity.
- He studied continuum mechanics, lunar theory with Clairaut, the three body problem, elasticity, acoustics, the wave theory of light, hydraulics, and music.
- Duhamel worked on partial differential equations and applied his methods to the theory of heat, to rational mechanics and to acoustics.
- Driven to match his father's prominence as a speech analyst, he undertook research in acoustics and speech with the aid of electrical and mechanical devices.
- Thompson, for example, could easily have written a history of technological changes in the history of sound and acoustics.
- Music and the science of sound and acoustics stand on the brink of huge change.
3
these German-made acoustics are exceptional value and a pleasure to play
short for acoustic guitar
Example sentencesExamples
- He recently released a jazz-based CD which shows his command of the steel and nylon acoustics as well as electric jazz guitar.
- The lead vocal and guitars on ‘Bitch’ are scratches - the vocal was recorded as I was playing a Martin acoustic, live to tape.
- The singer of Little Plato is as diminutive as his bands name, at times hidden behind his jumbo acoustic.
- I was about to knock on the door when I heard a snare hit, followed by a bass guitar, and an acoustic.
- Sitting on the stage beside the case he opened it and pulled out a beautiful cherry stained acoustic.
- ‘12 String Thing’ is exactly what the title suggests, a thorough workout on 12 string acoustic.
- Seth picked up Ferris' brand new black Taylor acoustic.
- Both use guitars in, mostly, their original form to expose the dichotomy between the electronic and the acoustic.
- Then he swaps to bass guitar or acoustic, Derek comes in on violin, Basil starts to sing.
- The trio has traded in their pedals and sneers for slides and acoustics.

Derivatives

acoustical

adjective

The next section of this paper will present a short history of acoustical building design as an evolving signifying system.
Example sentencesExamples
- First, the acoustical problem was solved by giving the performers body mikes, with the audience listening on little portable headsets.
- Listening to the orchestra perform these profound works in the Ulster Hall demonstrated once again what fine acoustical properties the hall has.
- A loud rock band was defined as ‘any group with more than three people without acoustical equipment other than drums.’
- The acoustical canopy hanging over the stage of San Francisco's Davies Symphony hall is made of 59 6-foot squares of Plexiglas.

acoustically

adverb əˈkuːstɪkliəˈkustɪk(ə)li

After Clarke heard Lovegrove singing acoustically, they decided to approach him (among others) to sing on the record.
Example sentencesExamples
- The former Squeeze musician will also play acoustically as he headlines the New Variety Club, Russell Street, on February 20.
- Having played these electric songs acoustically now, I think that for the first time ever the band is being given a degree of recognition that its never had before.
- The Auditorium is an acoustically perfect, beautifully designed venue.
- The two hit it off, began collaborating on songs, and were signed after performing acoustically for various record labels.

Origin

Mid 17th century: from Greek akoustikos, from akouein 'hear'.

Definition of acoustic in US English:

acoustic

adjectiveəˈkustɪkəˈko͞ostik

1Relating to sound or the sense of hearing.
声学的；听觉的
dogs have a much greater acoustic range than humans
狗的听觉范围比人大得多。
Example sentencesExamples
- Microjets can be powered by compressed air, thermal bubbles, and even acoustic waves.
- Although it is impossible to prevent many diseases that affect the hearing, it is possible to reduce the risk of acoustic trauma (hearing loss from loud noise).
- But even when they separate they remain in acoustic range.
- Thus, territorial male bullfrogs do not appear to assess an opponent's fighting ability based solely on the fundamental frequency of acoustic signals.
- Once the pod is in acoustic range, Luna will be released in hopes he reunites with his family.
- The place has been designed with a great acoustic sense.
- Until now, no one had measured the absolute acoustic profile of the human body - that is, how the body scatters sound waves independently of where it happens to be.
- To find out, the research team devised an experiment using an electronic shaker that converts acoustic sounds into vibrations.
- Such samples display a large number of acoustic modes, with little separation in frequency.
- It was an excellent environment for the seismic acoustic and infrared passive sensors once you could get them into the ground.
- As it happens, these neurons are also very sensitive to the acoustic boundaries between speech sounds, as are monkeys and human infants.
- Their underwater acoustic sense and echo-location skills are legendary.
- Other acoustic experiences, such as the hearing of human voices, may have been due to direct electric stimulation of the auditory cortex.
- But very sensitive hearing is necessary to hear all the acoustic cues in speech sounds.
- Quickly sensing the acoustic mismatch, the woman closes the bathroom door, muting the water sounds.
- At 50° C an acoustic alarm sounds and the PC system shuts itself down at temperatures above 53° C.
- To achieve this coordination, songbirds must open and close their beaks in register with the acoustic frequency of the sound being produced.
- Today, enemy targets can be engaged at ranges where they are seen on an electronic device solely as an item of electromagnetic, infrared, or acoustic data.
- The hard terrazzo floors and glass walls that border the terraced atrium bounce ambient noise around, creating a sense of acoustic community.
- On the other hand, cooling makes acoustic noise, which human beings don't tolerate well.
1. 1.1 (of building materials) used for soundproofing or modifying sound.
  （建筑材料）隔音的；修饰声音的
  acoustic tiles
  隔音砖。
  Example sentencesExamples
  Apparently this quietness was achieved by using ‘sound-deadening materials, additional door seals and acoustic glass’.
  When acoustic texture material is wet, asbestos fibers are withheld from release into the air.
  But even genuine acoustic foam comes in different fire-resistant grades.
  My room came with a vast stain spreading across the acoustic tiles in the ceiling.
  The floor was tiled in striking high quality vitreous tiles from Germany and the ceiling lined with acoustic tiles to minimise sound.
  It pertains to the removal of sprayed asbestos coatings used for thermal and acoustic insulation in buildings and on boilers in industrial plants.
  Hard, smooth surfaces are more sound-reflective than rough surfaces, or ones that are covered with fabric or acoustic materials.
  There was a bullet hole in one of the stained acoustic tiles there.
  Then open-web joists would be installed between the arch segments, and when these were completed acoustic metal decking was attached to the entire assembly.
  Highly light reflective, acoustic tiles let more available light reflect back into the room, and save money in utility costs.
  A smug smile on her face, she reached up and found her grip on the acoustic tile.
  You should use an airless gun to prime and paint your acoustic ceiling, by angling your gun slightly and spraying it lightly in all directions.
  It's not recommended to roll paint on an acoustic ceiling, as it is very porous.
  The ceiling itself mirrored the floor - white acoustic tile, smooth and nearly unbroken.
  When noise reduction is the goal, it is important to look at the acoustic tiles' NRC or CAC ratings.
  Interior surfaces are of pine and birch plywood boarding and acoustic wood louvres.
  Lead paint, which existed mostly on the window frames and in acoustic tile, were carefully removed, and the asbestos is being either removed or encapsulated.
  Innovations within the product lines of acoustic tile manufacturers allow for a more clean, crisp uncluttered aesthetic.
  Then you can start deciding things like where to place furniture and acoustic material, finding a good room that's not a hallway next to a jackhammer and so on.
  As a patient, you spend a great deal of time, sometimes days at a time in severe situations, flat on your back and staring at stained acoustic tiles.
2. 1.2 (of an explosive mine or other weapon) able to be set off by sound waves.
  （爆破性水雷或其他武器）能为声波引爆的
  Example sentencesExamples
  During the war, he joined the British Admiralty Research Laboratories where he designed acoustic and magnetic mines.
  Agate generates the acoustic signature of any ship in order to trigger acoustic mines.
  Current capabilities may limit future acoustic weapons to close-in engagements due to range and size of the required equipment.
  So, on the night of 3 November, 1940, magnetic and acoustic mines parachuted down from the Heinkels into the sea close to Milford Haven.
  At the outbreak of the Second World War, he transferred to the Admiralty, designing magnetic and acoustic mines in which the circuitry would enable enemy ships and sweeps to be distinguished.
  When the Second World War broke out, Crick was put to work for the British Navy developing magnetic and acoustic mines for use against German submarines and ships.
  The start of a three week blockage of the Suez Canal by the Germans placing magnetic and acoustic mines there.
  Alternately, the use of high power microwave technology, acoustic weapons or nonlethal chemicals might be called for.
  Once this had been introduced, the Germans began to use acoustic mines which were detonated by the sound of a ship's propeller acting on a diaphragm within them.
  What about nonlethal devices such as acoustic or heat ‘weapons’?
  This is the noise-maker for sweeping acoustic mines.
2(of popular music or musical instruments) not having electrical amplification.
（流行音乐，乐器）无电声扩音的，原声的
a sad, gentle acoustic ballad
old-fashioned acoustic instruments
Example sentencesExamples
- It's a superb example of acoustic jazz ensemble playing and lovely multi-horn arranging.
- It's a total transition - he's gone from acoustic jazz into electric jazz-rock.
- While many musicians of his generation were turning their back on acoustic music, he remained a loyal folkie.
- Neil Young says Jansch did for the acoustic guitar what Jimi Hendrix did for the electric guitar.
- It's been a while since an album has taken such great lengths to show that there is some tangible relation between the worlds of electronic and acoustic music.
- It's driven by a great bassline, some excellent acoustic guitar riffs and finds Nic Denson's vocals at their most spellbinding.
- You got your folky-picked acoustic guitar riff, check.
- It's a beautiful album, and solo acoustic music doesn't get much better than this.
- Murray, who is no longer with a band, played a set of rocksteady and reggae tunes on acoustic guitar.
- Yay, it's got both acoustic guitars and electronics!
- the Pacific women's trio Manuhiri from New Zealand and Tonga, with their contemporary acoustic music and lush harmonies.
- This album is pure laid back grooves, acoustic guitars, and blissed out melodies.
- In some quieter moments acoustic and slide guitars give them a breezy alt-country feel, while other songs seem designed for dancing.
- He also switched between acoustic and electric guitar regularly throughout the night.
- ‘St Christopher’ gently swings to a jazzy acoustic guitar and resembles nothing less than prime period Joni Mitchell.
- While another strong contender for best track on the album is Black Mountain, a haunting ballad built around a strong acoustic guitar riff and some heady stabs of violin.
- Appropriately, the movements are accompanied by live electronic and acoustic music.
- For anybody who likes playing the acoustic guitar, this album is a must.
- I listen to as much acoustic music as electronic these days; I like to keep an open mind.
- Because the band which has defined the sound of contemporary bluegrass over the last decade or so raises the bar in acoustic music with every new record.

nounəˈkustɪkəˈko͞ostik

1usually acousticsThe properties or qualities of a room or building that determine how sound is transmitted in it.
（房间或建筑物的）音响效果，音质
Symphony Hall has perfect acoustics
交响音乐厅有完美的音响效果。
Example sentencesExamples
- The courtroom was huge, but the acoustics in the room were good and even the slightest bit of breathing could be heard.
- The Cathedral is a beautiful venue for concerts and recitals and all musicians who play there comment on the wonderful acoustic of the building.
- Good sound guys can figure out the acoustics during sound check relatively quickly, but that's only going to go so far.
- Unfortunately, the debate was hampered by the acoustics in the hall, and many of the participants, myself included, were unable to follow much of what was said.
- The venue, Victoria Hall, is a beautiful 101-year-old local landmark which has superb acoustics and facilities and lends itself perfectly to this event.
- The acoustics within a room depend on the key issues of reverberation, room shape, and interior noise control.
- I look at this place and think, ‘jeez, from the perfect acoustics and sightlines of the Roman amphitheaters, it's all been downhill from there.’
- The attention to detail is magnificent and manifests itself in everything from the programme to the seating arrangements to the acoustics.
- The acoustics in this room sometimes are a little deceptive.
- His voice, as heard over the television, is not ideally modulated, but it was probably adapted to the acoustics in the room as he heard his own voice.
- ‘The acoustics in this house can play tricks with sounds,’ the earl continued.
- They all resonate at the same pitch, yet produce a constant, layered dissonance due to the room's inconsistent acoustics.
- The acoustics in the living room, thanks to its high ceiling and scant furniture, were incredible.
- However, the acoustics in that room where dreadful (very high ceiling), but Eric and Andre (2nd guitar and bass) did a good job and put on a good show.
- Luckily the room was not without excellent acoustics (even if her ears were still ringing a bit).
- ‘The perfect acoustics in the Heritage Centre make it the ideal venue for storytelling, music and song,’ says Ms Byrne.
- The cave's acoustics intensified the sound, causing her to become fully aware of the headache she was trying to ignore in the hope of placating it.
- But the shape of the rooms created terrible acoustics.
- The beautiful opera house claims to be one of the best in Europe, with perfect acoustics and frescoes painted by Karoly Lotz.
- Wavy perforated metal panels aid the room's acoustics yet appear to float off of the brick walls.
2acousticstreated as singular The branch of physics concerned with the properties of sound.
声学
Example sentencesExamples
- Rayleigh developed laboratory courses in heat, electricity and magnetism, properties of matter, optics, and acoustics.
- Thompson, for example, could easily have written a history of technological changes in the history of sound and acoustics.
- It was Murray who taught Alexander Graham Bell the basics of acoustics and electricity and thus was the grandfather, if not the father, of the telephone.
- Music and the science of sound and acoustics stand on the brink of huge change.
- He studied continuum mechanics, lunar theory with Clairaut, the three body problem, elasticity, acoustics, the wave theory of light, hydraulics, and music.
- Current advances in science and technology, particularly in the area of acoustics and high technologies, enable a more complete utilization of the audio band.
- Thus, the field of acoustics covers a vast array of different areas of use, and they are constantly expanding.
- He studied mathematical physics and acoustics producing a major study in 1862 which looked at musical theory and the perception of sound.
- He specializes in ocean acoustics, signal processing and physical oceanography.
- Driven to match his father's prominence as a speech analyst, he undertook research in acoustics and speech with the aid of electrical and mechanical devices.
- Unit Conversion Utility - consists of 47 electronic conversions in seven categories useful for forecasting, acoustics and nautical science.
- Duhamel worked on partial differential equations and applied his methods to the theory of heat, to rational mechanics and to acoustics.
- In the following article, Matthew Malsky analyzes the effect of digital technology on the science of acoustics in pursuit of a ‘real’ listening experience.
- Since that time, considerable advances have been made in the science of underwater acoustics and the hardware used for the detection of faint signals.
- Swedenborg joined his mysticism with a keen interest in natural science, especially acoustics.
- During World War I Fubini studied the accuracy of artillery fire and these investigations led him on to work on acoustics and electricity.
3A musical instrument without electrical amplification, typically a guitar.
原声乐器（尤指吉他）
Example sentencesExamples
- Then he swaps to bass guitar or acoustic, Derek comes in on violin, Basil starts to sing.
- Both use guitars in, mostly, their original form to expose the dichotomy between the electronic and the acoustic.
- ‘12 String Thing’ is exactly what the title suggests, a thorough workout on 12 string acoustic.
- The singer of Little Plato is as diminutive as his bands name, at times hidden behind his jumbo acoustic.
- The lead vocal and guitars on ‘Bitch’ are scratches - the vocal was recorded as I was playing a Martin acoustic, live to tape.
- Seth picked up Ferris' brand new black Taylor acoustic.
- The trio has traded in their pedals and sneers for slides and acoustics.
- I was about to knock on the door when I heard a snare hit, followed by a bass guitar, and an acoustic.
- Sitting on the stage beside the case he opened it and pulled out a beautiful cherry stained acoustic.
- He recently released a jazz-based CD which shows his command of the steel and nylon acoustics as well as electric jazz guitar.

Origin

Mid 17th century: from Greek akoustikos, from akouein ‘hear’.

词汇	acoustic
释义	Definition of acoustic in English: acoustic adjective əˈkuːstɪkəˈkustɪk 1Relating to sound or the sense of hearing. 声学的；听觉的 dogs have a much greater acoustic range than humans 狗的听觉范围比人大得多。 Example sentencesExamples To achieve this coordination, songbirds must open and close their beaks in register with the acoustic frequency of the sound being produced. Today, enemy targets can be engaged at ranges where they are seen on an electronic device solely as an item of electromagnetic, infrared, or acoustic data. On the other hand, cooling makes acoustic noise, which human beings don't tolerate well. Microjets can be powered by compressed air, thermal bubbles, and even acoustic waves. But very sensitive hearing is necessary to hear all the acoustic cues in speech sounds. Thus, territorial male bullfrogs do not appear to assess an opponent's fighting ability based solely on the fundamental frequency of acoustic signals. The place has been designed with a great acoustic sense. To find out, the research team devised an experiment using an electronic shaker that converts acoustic sounds into vibrations. As it happens, these neurons are also very sensitive to the acoustic boundaries between speech sounds, as are monkeys and human infants. It was an excellent environment for the seismic acoustic and infrared passive sensors once you could get them into the ground. Other acoustic experiences, such as the hearing of human voices, may have been due to direct electric stimulation of the auditory cortex. At 50° C an acoustic alarm sounds and the PC system shuts itself down at temperatures above 53° C. The hard terrazzo floors and glass walls that border the terraced atrium bounce ambient noise around, creating a sense of acoustic community. Such samples display a large number of acoustic modes, with little separation in frequency. Their underwater acoustic sense and echo-location skills are legendary. Although it is impossible to prevent many diseases that affect the hearing, it is possible to reduce the risk of acoustic trauma (hearing loss from loud noise). Quickly sensing the acoustic mismatch, the woman closes the bathroom door, muting the water sounds. Once the pod is in acoustic range, Luna will be released in hopes he reunites with his family. But even when they separate they remain in acoustic range. Until now, no one had measured the absolute acoustic profile of the human body - that is, how the body scatters sound waves independently of where it happens to be. 1.1 (of building materials) used for soundproofing or modifying sound. （建筑材料）隔音的；修饰声音的 acoustic tiles 隔音砖。 Example sentencesExamples As a patient, you spend a great deal of time, sometimes days at a time in severe situations, flat on your back and staring at stained acoustic tiles. Innovations within the product lines of acoustic tile manufacturers allow for a more clean, crisp uncluttered aesthetic. Lead paint, which existed mostly on the window frames and in acoustic tile, were carefully removed, and the asbestos is being either removed or encapsulated. My room came with a vast stain spreading across the acoustic tiles in the ceiling. The ceiling itself mirrored the floor - white acoustic tile, smooth and nearly unbroken. Hard, smooth surfaces are more sound-reflective than rough surfaces, or ones that are covered with fabric or acoustic materials. Then open-web joists would be installed between the arch segments, and when these were completed acoustic metal decking was attached to the entire assembly. Interior surfaces are of pine and birch plywood boarding and acoustic wood louvres. A smug smile on her face, she reached up and found her grip on the acoustic tile. Apparently this quietness was achieved by using ‘sound-deadening materials, additional door seals and acoustic glass’. When noise reduction is the goal, it is important to look at the acoustic tiles' NRC or CAC ratings. You should use an airless gun to prime and paint your acoustic ceiling, by angling your gun slightly and spraying it lightly in all directions. It pertains to the removal of sprayed asbestos coatings used for thermal and acoustic insulation in buildings and on boilers in industrial plants. When acoustic texture material is wet, asbestos fibers are withheld from release into the air. But even genuine acoustic foam comes in different fire-resistant grades. Then you can start deciding things like where to place furniture and acoustic material, finding a good room that's not a hallway next to a jackhammer and so on. The floor was tiled in striking high quality vitreous tiles from Germany and the ceiling lined with acoustic tiles to minimise sound. There was a bullet hole in one of the stained acoustic tiles there. Highly light reflective, acoustic tiles let more available light reflect back into the room, and save money in utility costs. It's not recommended to roll paint on an acoustic ceiling, as it is very porous. 1.2 (of a device or system) utilizing sound energy in its operation. （装置，系统）利用声能运作的 Example sentencesExamples Just as camera lenses focus light, acoustic lenses reshape sound, spreading it horizontally to increase the sensation of space. That plan will see a ban on driftnets in some EU waters and the use of acoustic devices, or pingers, to repel dolphins and related species from driftnets. ‘That tide gauge uses an acoustic device to record the level of the sea's surface,’ she explains. At Oxford University, researchers have developed an acoustic camera that builds up visual pictures using sound. Just Recently researchers were able to determine the damage to the ship by imaging the sunken liner with an acoustic device known as a sub-bottom profiler. This structure is derived from the melon of other odontocetes, and like the melon, may serve as a sort of acoustic lens. In contrast to the centrality of the plan, the ceiling evokes the axiality of traditional church spaces and generates a remarkable degree of drama through acoustic devices. The system propagates an acoustic energy beam, which the antenna array directs against one of the buildings. 1.3 (of an explosive mine or other weapon) able to be set off by sound waves. （爆破性水雷或其他武器）能为声波引爆的 Example sentencesExamples Once this had been introduced, the Germans began to use acoustic mines which were detonated by the sound of a ship's propeller acting on a diaphragm within them. Alternately, the use of high power microwave technology, acoustic weapons or nonlethal chemicals might be called for. What about nonlethal devices such as acoustic or heat ‘weapons’? The start of a three week blockage of the Suez Canal by the Germans placing magnetic and acoustic mines there. This is the noise-maker for sweeping acoustic mines. So, on the night of 3 November, 1940, magnetic and acoustic mines parachuted down from the Heinkels into the sea close to Milford Haven. Agate generates the acoustic signature of any ship in order to trigger acoustic mines. During the war, he joined the British Admiralty Research Laboratories where he designed acoustic and magnetic mines. When the Second World War broke out, Crick was put to work for the British Navy developing magnetic and acoustic mines for use against German submarines and ships. Current capabilities may limit future acoustic weapons to close-in engagements due to range and size of the required equipment. At the outbreak of the Second World War, he transferred to the Admiralty, designing magnetic and acoustic mines in which the circuitry would enable enemy ships and sweeps to be distinguished. 2(of popular music or musical instruments) not having electrical amplification. （流行音乐，乐器）无电声扩音的，原声的 a sad, gentle acoustic ballad old-fashioned acoustic instruments Example sentencesExamples the Pacific women's trio Manuhiri from New Zealand and Tonga, with their contemporary acoustic music and lush harmonies. Appropriately, the movements are accompanied by live electronic and acoustic music. I listen to as much acoustic music as electronic these days; I like to keep an open mind. For anybody who likes playing the acoustic guitar, this album is a must. ‘St Christopher’ gently swings to a jazzy acoustic guitar and resembles nothing less than prime period Joni Mitchell. While another strong contender for best track on the album is Black Mountain, a haunting ballad built around a strong acoustic guitar riff and some heady stabs of violin. It's a total transition - he's gone from acoustic jazz into electric jazz-rock. He also switched between acoustic and electric guitar regularly throughout the night. It's a beautiful album, and solo acoustic music doesn't get much better than this. This album is pure laid back grooves, acoustic guitars, and blissed out melodies. It's been a while since an album has taken such great lengths to show that there is some tangible relation between the worlds of electronic and acoustic music. Yay, it's got both acoustic guitars and electronics! You got your folky-picked acoustic guitar riff, check. Because the band which has defined the sound of contemporary bluegrass over the last decade or so raises the bar in acoustic music with every new record. Murray, who is no longer with a band, played a set of rocksteady and reggae tunes on acoustic guitar. While many musicians of his generation were turning their back on acoustic music, he remained a loyal folkie. It's a superb example of acoustic jazz ensemble playing and lovely multi-horn arranging. It's driven by a great bassline, some excellent acoustic guitar riffs and finds Nic Denson's vocals at their most spellbinding. In some quieter moments acoustic and slide guitars give them a breezy alt-country feel, while other songs seem designed for dancing. Neil Young says Jansch did for the acoustic guitar what Jimi Hendrix did for the electric guitar. noun əˈkuːstɪkəˈkustɪk 1usually acousticsThe properties or qualities of a room or building that determine how sound is transmitted in it. （房间或建筑物的）音响效果，音质 the Symphony Hall has perfect acoustics 交响音乐厅有完美的音响效果。 Example sentencesExamples The acoustics in this room sometimes are a little deceptive. The courtroom was huge, but the acoustics in the room were good and even the slightest bit of breathing could be heard. ‘The perfect acoustics in the Heritage Centre make it the ideal venue for storytelling, music and song,’ says Ms Byrne. Wavy perforated metal panels aid the room's acoustics yet appear to float off of the brick walls. His voice, as heard over the television, is not ideally modulated, but it was probably adapted to the acoustics in the room as he heard his own voice. The venue, Victoria Hall, is a beautiful 101-year-old local landmark which has superb acoustics and facilities and lends itself perfectly to this event. ‘The acoustics in this house can play tricks with sounds,’ the earl continued. They all resonate at the same pitch, yet produce a constant, layered dissonance due to the room's inconsistent acoustics. I look at this place and think, ‘jeez, from the perfect acoustics and sightlines of the Roman amphitheaters, it's all been downhill from there.’ However, the acoustics in that room where dreadful (very high ceiling), but Eric and Andre (2nd guitar and bass) did a good job and put on a good show. The acoustics in the living room, thanks to its high ceiling and scant furniture, were incredible. But the shape of the rooms created terrible acoustics. The Cathedral is a beautiful venue for concerts and recitals and all musicians who play there comment on the wonderful acoustic of the building. The beautiful opera house claims to be one of the best in Europe, with perfect acoustics and frescoes painted by Karoly Lotz. Luckily the room was not without excellent acoustics (even if her ears were still ringing a bit). Good sound guys can figure out the acoustics during sound check relatively quickly, but that's only going to go so far. Unfortunately, the debate was hampered by the acoustics in the hall, and many of the participants, myself included, were unable to follow much of what was said. The attention to detail is magnificent and manifests itself in everything from the programme to the seating arrangements to the acoustics. The acoustics within a room depend on the key issues of reverberation, room shape, and interior noise control. The cave's acoustics intensified the sound, causing her to become fully aware of the headache she was trying to ignore in the hope of placating it. 2acousticstreated as singular The branch of physics concerned with the properties of sound. 声学 Tyndall lectured on acoustics Example sentencesExamples Thus, the field of acoustics covers a vast array of different areas of use, and they are constantly expanding. Rayleigh developed laboratory courses in heat, electricity and magnetism, properties of matter, optics, and acoustics. He specializes in ocean acoustics, signal processing and physical oceanography. Since that time, considerable advances have been made in the science of underwater acoustics and the hardware used for the detection of faint signals. It was Murray who taught Alexander Graham Bell the basics of acoustics and electricity and thus was the grandfather, if not the father, of the telephone. Current advances in science and technology, particularly in the area of acoustics and high technologies, enable a more complete utilization of the audio band. In the following article, Matthew Malsky analyzes the effect of digital technology on the science of acoustics in pursuit of a ‘real’ listening experience. Unit Conversion Utility - consists of 47 electronic conversions in seven categories useful for forecasting, acoustics and nautical science. He studied mathematical physics and acoustics producing a major study in 1862 which looked at musical theory and the perception of sound. Swedenborg joined his mysticism with a keen interest in natural science, especially acoustics. During World War I Fubini studied the accuracy of artillery fire and these investigations led him on to work on acoustics and electricity. He studied continuum mechanics, lunar theory with Clairaut, the three body problem, elasticity, acoustics, the wave theory of light, hydraulics, and music. Duhamel worked on partial differential equations and applied his methods to the theory of heat, to rational mechanics and to acoustics. Driven to match his father's prominence as a speech analyst, he undertook research in acoustics and speech with the aid of electrical and mechanical devices. Thompson, for example, could easily have written a history of technological changes in the history of sound and acoustics. Music and the science of sound and acoustics stand on the brink of huge change. 3 these German-made acoustics are exceptional value and a pleasure to play short for acoustic guitar Example sentencesExamples He recently released a jazz-based CD which shows his command of the steel and nylon acoustics as well as electric jazz guitar. The lead vocal and guitars on ‘Bitch’ are scratches - the vocal was recorded as I was playing a Martin acoustic, live to tape. The singer of Little Plato is as diminutive as his bands name, at times hidden behind his jumbo acoustic. I was about to knock on the door when I heard a snare hit, followed by a bass guitar, and an acoustic. Sitting on the stage beside the case he opened it and pulled out a beautiful cherry stained acoustic. ‘12 String Thing’ is exactly what the title suggests, a thorough workout on 12 string acoustic. Seth picked up Ferris' brand new black Taylor acoustic. Both use guitars in, mostly, their original form to expose the dichotomy between the electronic and the acoustic. Then he swaps to bass guitar or acoustic, Derek comes in on violin, Basil starts to sing. The trio has traded in their pedals and sneers for slides and acoustics. Derivatives acoustical adjective The next section of this paper will present a short history of acoustical building design as an evolving signifying system. Example sentencesExamples First, the acoustical problem was solved by giving the performers body mikes, with the audience listening on little portable headsets. Listening to the orchestra perform these profound works in the Ulster Hall demonstrated once again what fine acoustical properties the hall has. A loud rock band was defined as ‘any group with more than three people without acoustical equipment other than drums.’ The acoustical canopy hanging over the stage of San Francisco's Davies Symphony hall is made of 59 6-foot squares of Plexiglas. acoustically adverb əˈkuːstɪkliəˈkustɪk(ə)li After Clarke heard Lovegrove singing acoustically, they decided to approach him (among others) to sing on the record. Example sentencesExamples The former Squeeze musician will also play acoustically as he headlines the New Variety Club, Russell Street, on February 20. Having played these electric songs acoustically now, I think that for the first time ever the band is being given a degree of recognition that its never had before. The Auditorium is an acoustically perfect, beautifully designed venue. The two hit it off, began collaborating on songs, and were signed after performing acoustically for various record labels. Origin Mid 17th century: from Greek akoustikos, from akouein 'hear'. Definition of acoustic in US English: acoustic adjectiveəˈkustɪkəˈko͞ostik 1Relating to sound or the sense of hearing. 声学的；听觉的 dogs have a much greater acoustic range than humans 狗的听觉范围比人大得多。 Example sentencesExamples Microjets can be powered by compressed air, thermal bubbles, and even acoustic waves. Although it is impossible to prevent many diseases that affect the hearing, it is possible to reduce the risk of acoustic trauma (hearing loss from loud noise). But even when they separate they remain in acoustic range. Thus, territorial male bullfrogs do not appear to assess an opponent's fighting ability based solely on the fundamental frequency of acoustic signals. Once the pod is in acoustic range, Luna will be released in hopes he reunites with his family. The place has been designed with a great acoustic sense. Until now, no one had measured the absolute acoustic profile of the human body - that is, how the body scatters sound waves independently of where it happens to be. To find out, the research team devised an experiment using an electronic shaker that converts acoustic sounds into vibrations. Such samples display a large number of acoustic modes, with little separation in frequency. It was an excellent environment for the seismic acoustic and infrared passive sensors once you could get them into the ground. As it happens, these neurons are also very sensitive to the acoustic boundaries between speech sounds, as are monkeys and human infants. Their underwater acoustic sense and echo-location skills are legendary. Other acoustic experiences, such as the hearing of human voices, may have been due to direct electric stimulation of the auditory cortex. But very sensitive hearing is necessary to hear all the acoustic cues in speech sounds. Quickly sensing the acoustic mismatch, the woman closes the bathroom door, muting the water sounds. At 50° C an acoustic alarm sounds and the PC system shuts itself down at temperatures above 53° C. To achieve this coordination, songbirds must open and close their beaks in register with the acoustic frequency of the sound being produced. Today, enemy targets can be engaged at ranges where they are seen on an electronic device solely as an item of electromagnetic, infrared, or acoustic data. The hard terrazzo floors and glass walls that border the terraced atrium bounce ambient noise around, creating a sense of acoustic community. On the other hand, cooling makes acoustic noise, which human beings don't tolerate well. 1.1 (of building materials) used for soundproofing or modifying sound. （建筑材料）隔音的；修饰声音的 acoustic tiles 隔音砖。 Example sentencesExamples Apparently this quietness was achieved by using ‘sound-deadening materials, additional door seals and acoustic glass’. When acoustic texture material is wet, asbestos fibers are withheld from release into the air. But even genuine acoustic foam comes in different fire-resistant grades. My room came with a vast stain spreading across the acoustic tiles in the ceiling. The floor was tiled in striking high quality vitreous tiles from Germany and the ceiling lined with acoustic tiles to minimise sound. It pertains to the removal of sprayed asbestos coatings used for thermal and acoustic insulation in buildings and on boilers in industrial plants. Hard, smooth surfaces are more sound-reflective than rough surfaces, or ones that are covered with fabric or acoustic materials. There was a bullet hole in one of the stained acoustic tiles there. Then open-web joists would be installed between the arch segments, and when these were completed acoustic metal decking was attached to the entire assembly. Highly light reflective, acoustic tiles let more available light reflect back into the room, and save money in utility costs. A smug smile on her face, she reached up and found her grip on the acoustic tile. You should use an airless gun to prime and paint your acoustic ceiling, by angling your gun slightly and spraying it lightly in all directions. It's not recommended to roll paint on an acoustic ceiling, as it is very porous. The ceiling itself mirrored the floor - white acoustic tile, smooth and nearly unbroken. When noise reduction is the goal, it is important to look at the acoustic tiles' NRC or CAC ratings. Interior surfaces are of pine and birch plywood boarding and acoustic wood louvres. Lead paint, which existed mostly on the window frames and in acoustic tile, were carefully removed, and the asbestos is being either removed or encapsulated. Innovations within the product lines of acoustic tile manufacturers allow for a more clean, crisp uncluttered aesthetic. Then you can start deciding things like where to place furniture and acoustic material, finding a good room that's not a hallway next to a jackhammer and so on. As a patient, you spend a great deal of time, sometimes days at a time in severe situations, flat on your back and staring at stained acoustic tiles. 1.2 (of an explosive mine or other weapon) able to be set off by sound waves. （爆破性水雷或其他武器）能为声波引爆的 Example sentencesExamples During the war, he joined the British Admiralty Research Laboratories where he designed acoustic and magnetic mines. Agate generates the acoustic signature of any ship in order to trigger acoustic mines. Current capabilities may limit future acoustic weapons to close-in engagements due to range and size of the required equipment. So, on the night of 3 November, 1940, magnetic and acoustic mines parachuted down from the Heinkels into the sea close to Milford Haven. At the outbreak of the Second World War, he transferred to the Admiralty, designing magnetic and acoustic mines in which the circuitry would enable enemy ships and sweeps to be distinguished. When the Second World War broke out, Crick was put to work for the British Navy developing magnetic and acoustic mines for use against German submarines and ships. The start of a three week blockage of the Suez Canal by the Germans placing magnetic and acoustic mines there. Alternately, the use of high power microwave technology, acoustic weapons or nonlethal chemicals might be called for. Once this had been introduced, the Germans began to use acoustic mines which were detonated by the sound of a ship's propeller acting on a diaphragm within them. What about nonlethal devices such as acoustic or heat ‘weapons’? This is the noise-maker for sweeping acoustic mines. 2(of popular music or musical instruments) not having electrical amplification. （流行音乐，乐器）无电声扩音的，原声的 a sad, gentle acoustic ballad old-fashioned acoustic instruments Example sentencesExamples It's a superb example of acoustic jazz ensemble playing and lovely multi-horn arranging. It's a total transition - he's gone from acoustic jazz into electric jazz-rock. While many musicians of his generation were turning their back on acoustic music, he remained a loyal folkie. Neil Young says Jansch did for the acoustic guitar what Jimi Hendrix did for the electric guitar. It's been a while since an album has taken such great lengths to show that there is some tangible relation between the worlds of electronic and acoustic music. It's driven by a great bassline, some excellent acoustic guitar riffs and finds Nic Denson's vocals at their most spellbinding. You got your folky-picked acoustic guitar riff, check. It's a beautiful album, and solo acoustic music doesn't get much better than this. Murray, who is no longer with a band, played a set of rocksteady and reggae tunes on acoustic guitar. Yay, it's got both acoustic guitars and electronics! the Pacific women's trio Manuhiri from New Zealand and Tonga, with their contemporary acoustic music and lush harmonies. This album is pure laid back grooves, acoustic guitars, and blissed out melodies. In some quieter moments acoustic and slide guitars give them a breezy alt-country feel, while other songs seem designed for dancing. He also switched between acoustic and electric guitar regularly throughout the night. ‘St Christopher’ gently swings to a jazzy acoustic guitar and resembles nothing less than prime period Joni Mitchell. While another strong contender for best track on the album is Black Mountain, a haunting ballad built around a strong acoustic guitar riff and some heady stabs of violin. Appropriately, the movements are accompanied by live electronic and acoustic music. For anybody who likes playing the acoustic guitar, this album is a must. I listen to as much acoustic music as electronic these days; I like to keep an open mind. Because the band which has defined the sound of contemporary bluegrass over the last decade or so raises the bar in acoustic music with every new record. nounəˈkustɪkəˈko͞ostik 1usually acousticsThe properties or qualities of a room or building that determine how sound is transmitted in it. （房间或建筑物的）音响效果，音质 Symphony Hall has perfect acoustics 交响音乐厅有完美的音响效果。 Example sentencesExamples The courtroom was huge, but the acoustics in the room were good and even the slightest bit of breathing could be heard. The Cathedral is a beautiful venue for concerts and recitals and all musicians who play there comment on the wonderful acoustic of the building. Good sound guys can figure out the acoustics during sound check relatively quickly, but that's only going to go so far. Unfortunately, the debate was hampered by the acoustics in the hall, and many of the participants, myself included, were unable to follow much of what was said. The venue, Victoria Hall, is a beautiful 101-year-old local landmark which has superb acoustics and facilities and lends itself perfectly to this event. The acoustics within a room depend on the key issues of reverberation, room shape, and interior noise control. I look at this place and think, ‘jeez, from the perfect acoustics and sightlines of the Roman amphitheaters, it's all been downhill from there.’ The attention to detail is magnificent and manifests itself in everything from the programme to the seating arrangements to the acoustics. The acoustics in this room sometimes are a little deceptive. His voice, as heard over the television, is not ideally modulated, but it was probably adapted to the acoustics in the room as he heard his own voice. ‘The acoustics in this house can play tricks with sounds,’ the earl continued. They all resonate at the same pitch, yet produce a constant, layered dissonance due to the room's inconsistent acoustics. The acoustics in the living room, thanks to its high ceiling and scant furniture, were incredible. However, the acoustics in that room where dreadful (very high ceiling), but Eric and Andre (2nd guitar and bass) did a good job and put on a good show. Luckily the room was not without excellent acoustics (even if her ears were still ringing a bit). ‘The perfect acoustics in the Heritage Centre make it the ideal venue for storytelling, music and song,’ says Ms Byrne. The cave's acoustics intensified the sound, causing her to become fully aware of the headache she was trying to ignore in the hope of placating it. But the shape of the rooms created terrible acoustics. The beautiful opera house claims to be one of the best in Europe, with perfect acoustics and frescoes painted by Karoly Lotz. Wavy perforated metal panels aid the room's acoustics yet appear to float off of the brick walls. 2acousticstreated as singular The branch of physics concerned with the properties of sound. 声学 Example sentencesExamples Rayleigh developed laboratory courses in heat, electricity and magnetism, properties of matter, optics, and acoustics. Thompson, for example, could easily have written a history of technological changes in the history of sound and acoustics. It was Murray who taught Alexander Graham Bell the basics of acoustics and electricity and thus was the grandfather, if not the father, of the telephone. Music and the science of sound and acoustics stand on the brink of huge change. He studied continuum mechanics, lunar theory with Clairaut, the three body problem, elasticity, acoustics, the wave theory of light, hydraulics, and music. Current advances in science and technology, particularly in the area of acoustics and high technologies, enable a more complete utilization of the audio band. Thus, the field of acoustics covers a vast array of different areas of use, and they are constantly expanding. He studied mathematical physics and acoustics producing a major study in 1862 which looked at musical theory and the perception of sound. He specializes in ocean acoustics, signal processing and physical oceanography. Driven to match his father's prominence as a speech analyst, he undertook research in acoustics and speech with the aid of electrical and mechanical devices. Unit Conversion Utility - consists of 47 electronic conversions in seven categories useful for forecasting, acoustics and nautical science. Duhamel worked on partial differential equations and applied his methods to the theory of heat, to rational mechanics and to acoustics. In the following article, Matthew Malsky analyzes the effect of digital technology on the science of acoustics in pursuit of a ‘real’ listening experience. Since that time, considerable advances have been made in the science of underwater acoustics and the hardware used for the detection of faint signals. Swedenborg joined his mysticism with a keen interest in natural science, especially acoustics. During World War I Fubini studied the accuracy of artillery fire and these investigations led him on to work on acoustics and electricity. 3A musical instrument without electrical amplification, typically a guitar. 原声乐器（尤指吉他） Example sentencesExamples Then he swaps to bass guitar or acoustic, Derek comes in on violin, Basil starts to sing. Both use guitars in, mostly, their original form to expose the dichotomy between the electronic and the acoustic. ‘12 String Thing’ is exactly what the title suggests, a thorough workout on 12 string acoustic. The singer of Little Plato is as diminutive as his bands name, at times hidden behind his jumbo acoustic. The lead vocal and guitars on ‘Bitch’ are scratches - the vocal was recorded as I was playing a Martin acoustic, live to tape. Seth picked up Ferris' brand new black Taylor acoustic. The trio has traded in their pedals and sneers for slides and acoustics. I was about to knock on the door when I heard a snare hit, followed by a bass guitar, and an acoustic. Sitting on the stage beside the case he opened it and pulled out a beautiful cherry stained acoustic. He recently released a jazz-based CD which shows his command of the steel and nylon acoustics as well as electric jazz guitar. Origin Mid 17th century: from Greek akoustikos, from akouein ‘hear’.
随便看	astoundingly astoundment astounds astraddle a-straddle Astraea astragal astragali astragali astragals astragalus astragate a straight face a straight face a straight fight a straight fight a-strain astrakhan bird cherry bird colonel bird dog bird-dog bird-dogging bird-dom bird-eating