Common Digital Audio Formats

The following table lists key characteristics of common digital image file formats.

Format Bit-depth (per sample) Sampling rate (kHz) Channels Lossy compression Lossless compression Embedded metadata
PCM Wave (WAV)*
MPEG Layer-3 (MP3) 48 2
x
x
Vorbis (OGG) 200 255
x
PCM Audio Interchange File Format (AIFF)*
x
Free Lossless Audio Codec (FLAC) 32 1,048.57 8
x
x
Advanced Audio Coding (AAC) 192 48
x
Microsoft Windows Media Audio (WMA) 24 96 8
x
x
x
Dolby Digital AC-3 (AC3) 16 48 6
x
Dolby TrueHD 24 96 14
x
Digital Theater System Coherent Acoustics (DTS) 24 48 6
x
DTS-HD Master Audio (Stereo mode) 24 192 2
x
DTS-HD Master Audio (Multichannel mode) 24 96 8
x

*Wave and AIFF are container formats that are used in conjunction with various audio codecs, which may impose limits on each property.

Posted: October 15th, 2008
Categories: Articles
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