Reverberation

Disciplines of Study [DoS]  >  Acoustics  ]

Reverberation is a result of multiple reflections. A sound wave in an enclosed or semi-enclosed environment will be broken up as it is bounced back and forth among the reflecting surfaces. Reverberation is, in effect, a multiplicity of echoes whose speed of repetition is too quick for them to be perceived as separate from one another. W.C. Sabine established the official period of reverberation as the time required by a sound in a space to decrease to one-millionth of its original strength (i.e. for its intensity level to change by -60 dB). However minimal, the reverberant quality of any space, whether enclosed or not, helps to define the way in which it is perceived. Although it may not be realised consciously, reverberation is one of many cues used by a listener for orientation in a given space. The ratio of direct to reverberated sound is also an important cue for the perception of depth and distance. Reverberation will also increase the ambient noise level and apparent loudness of sounds within a space, an important factor to consider in acoustic design.

Artificial reverberation is traditionally produced by means of a reverberation chamber or echo chamber, multiple tape echo, or more commonly, by exciting a metal spring or plate at one end, and picking up the delayed signal at another point. However, digital processing devices and computer techniques have been developed in recent years that allow a good simulation of naturally produced reverberation. These systems allow for a variable ratio of direct to reflected sound, and some include both global reverberation (i.e. reflected sound from all directions) and local reverberation (i.e. that coming from the direction of the sound source). (Source: Barry Truax - Handbook for Acoustic Ecology CD-ROM Edition. Cambridge Street Publishing, 1999 - CSR-CDR 9901)

 

Bibliography:

English - Español - Français - Deutch - Italiano

Alphabetical order - Chronological order

Geslin, Yann (2001). Le studio 123
Mion, Philippe (2001). {La grotte}, extrait de {Hétérozygote}

Top

bactrim 112 buy qutipin usa in usa buy cheap tadarise buy lovegra online uk in canada bactrim onlnie purchase lipitor omeprazole 40mg generic buy fluconazole no prescription buy generic nodict more info about generic urimax bupropion 141 sr gleevec cost at caremart arcalion sulbutiamine 200mg buy sustanon low prices more info about bactrim plus fmg piracetam walmart in new york buy generic lasix online in mexico http://www.actuabd.com/?order=896608 info about generic diflucan oral http://www.actuabd.com/?order=48844 tenofovir viread piracetam for sale testosterone undecanoate pills buy bulk piracetam diflucan price in united states http://www.actuabd.com/?order=140665 voltaren pill cost of zocor in france buy monodox buy cialis online with mastercard prexaton tablets buy nexium without rx buy vilitra canada information about amitriptyline cost order rizact buy cheapest acamprol more info about buspin 5 http://www.actuabd.com/?order=363950 order mestilon http://www.actuabd.com/?order=884882 http://www.actuabd.com/?order=126789 bupropion 150mg sr diflucan sale naltrexone online quinine sulphate 300mg http://www.actuabd.com/?order=452220 buy tenofovir gel online buy silagra uk more lipitor in portugal imatinib mesylate 400mg http://www.actuabd.com/?order=37364 bactrim 800 mg fluticasone propionate cream