WAV
 |
|
| Filename extension | .wav .wave |
|---|---|
| Internet media type | audio/vnd.wave, audio/wav, audio/wave, audio/x-wav |
| Type code | WAVE |
| Uniform Type Identifier (UTI) | com.microsoft.waveform-audio |
| Developed by | Microsoft & IBM |
| Initial release | 1991 |
| Latest release |
Multiple Channel Audio Data and WAVE Files
(7 March 2007 (update)) |
| Type of format | audio file format, container format |
| Extended from | RIFF |
| Extended to | BWF, RF64 |
Waveform Audio File Format (WAVE, or more commonly known as WAV due to its filename extension) (rarely, Audio for Windows) is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is an application of the Resource Interchange File Format (RIFF) bitstream format method for storing data in "chunks", and thus is also close to the 8SVX and the AIFF format used on Amiga and Macintosh computers, respectively. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format.
Both WAVs and AIFFs are compatible with Windows, Macintosh, and Linux operating systems. The format takes into account some differences of the Intel CPU such as little-endian byte order. The RIFF format acts as a "wrapper" for various audio coding formats.
Though a WAV file can contain compressed audio, the most common WAV audio format is uncompressed audio in the linear pulse code modulation (LPCM) format. LPCM is also the standard audio coding format for audio CDs, which store two-channel LPCM audio sampled 44,100 times per second with 16 bits per sample. Since LPCM is uncompressed and retains all of the samples of an audio track, professional users or audio experts may use the WAV format with LPCM audio for maximum audio quality. WAV files can also be edited and manipulated with relative ease using software.
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