and MPEG Layer-3. These are the default ACM codecs that come with Windows. The above are WAV files; even those that use MP3 compression have the .wav extension. See also Audio Compression Manager Broadcast Wave Format (BWF) Comparison of audio coding formats RF64, an extended file format for audio (multichannel file format enabling file sizes to exceed 4 gigabytes) Windows Media Audio References External links WAVE file format specifications - from McGill University, (Last update: 2011-01-03) Extensible Wave-Format Descriptors from Microsoft (Updated October 26, 2017) More information on WAVE_FORMAT_EXTENSIBLE - University of Bath WAVE File Format - technical details (1999) WAV & BWF Metadata Guide Exif tags; see, for example, page 128 Audio file formats Digital container formats Computer-related introductions in 1991 Microsoft Windows multimedia technology