wav

from The Free On-line Dictionary of Computing (8 July 2008)
wav

   <multimedia, file format, filename extension> (waveform)
   /wav/, /dot wav/ A {sound} format developed by {Microsoft} and
   used extensively in {Microsoft Windows}.  Conversion tools are
   available to allow most other {operating systems} to play .wav
   files.

   .wav files are also used as the sound source in {wavetable}
   synthesis, e.g. in E-mu's {SoundFont}.  In addition, .wav
   files are also supported by some {MIDI} sequencers as add-on
   audio.  That is, pre-recorded .wav files are played back by
   control commands written in the sequence script.

   Specification (http://qzx.com/pc-gpe/wav.txt).

   (1997-10-11)
    

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