Waveform

Musicology of Electroacoustic Music [MEM]  >  Analysis  >  Audio Analysis  >  Spectral Analysis  ]

A waveform is a graphic representation of the variations of some continuous signal with respect to time. The waveform of a sound represents the changes in air pressure (amplitude) that are caused by excitation of the air by, for example, a musical instrument.

It should be understood that this is not the only way in which a sound may be defined. A waveform represents the signal as it changes with time - it is a ’time-domain’ representation. The sound can also be represented in the ’frequency domain’; this is known as the spectrum of the sound, giving a picture of the timbre of the sound. A number of sophisticated analysis techniques have been developed, many requiring the use of a computer, which can convert (’transform’) the representation of a signal from the time domain to the frequency domain, and vice versa (the ’inverse transform’). Musicians interested in sound synthesis need to understand both representations, as they need to know the details of the spectrum of the waveforms that are being used in the synthesis process. (Source - Richard Dobson (1992). A Dictionary of Electronic and Computer Music Technology. Oxford University Press.)

 

See also:

Oscillator

 

Bibliography:

English - Español - Français - Deutch - Italiano

Alphabetical order - Chronological order

IRCAM-Hyptique, (1999). Dix jeux d’écoute
Risset, Jean-Claude (2001b). Problèmes posés par l’analyse d’œuvres musicales dont la réalisation fait appel à l’informatique

Top

information about cost lipitor azithromycin pilva isotretinion best price on ciprofloxacin 750mg without a prescription zithromax azithromycin http://sfc.asso.fr/?mar=312569 buy levitra canada order aldactone quetiapine 300mg more info buy fluconazole mexico erlotinib drug in usa http://www.wip-villette.com/?hah=384360 bupropion xl 300mg tab buy finasteride over the counter http://www.revue-medias.com/?dft=906503 dilantin 60 mg accutane sale megalis buy vega gleevec cost at caremar http://sfc-classification.net/?hty=374377 http://urd.org/?hw=712197 esomeprazole without prescription more medication reaction bactrim enalapril otc diflucan buy generic lithosun sr online http://sfc-classification.net/?hty=664766 nexium without prescription prednisolone 25mg in california buy bactrim more info armodafinil online diflucan uk http://netia59.ac-lille.fr/rxs/?gha=918939 doxycycline drug iressa buy generic ampicillin online buy waklert online in mayami more info canada accutane purchase norvasc pharmacy in usa order tizan online http://reseau-terra.eu/?gag=822025 cheap premarin kamagra oral jelly over the counter more info price of bupropion xl buy generic sulpitac online buy vardenafil canada buy cheapest piracetam bimatoprost lowest price information buy accutane cost of prilosec filagra online http://www.wip-villette.com/?hah=656014 http://pacen.in2p3.fr/?poc=381367 buy generic methoxsalen online in mexico http://toolinux.com/?aff=446810 buy vardenafil in australia information about buy wellbutrin sr buy cheap ciprofloxacin in canada enalapril vasotec generic generic brand for zocor in canada http://tg.auf.org/?har=405865