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Audio formats

Here are the most recurrent audio formats we deal with:

Supported File ExtensionsFile Details
.aalow-bitrate audiobook container format with DRM, containing audio encoded as either MP3 or the ACELP speech codec.
.apeMonkey’s Audio lossless audio compression format.
.auThe standard audio file format used by Sun, Unix and Java. The audio in au files can be PCM or compressed with the μ-law, a-law or G729 codecs.
.m4aAn audio-only MPEG-4 file, used by Apple for unprotected music downloaded from their iTunes Music Store. Audio within the m4a file is typically encoded with AAC, although lossless ALAC may also be used.
.mp3PEG Layer III Audio. It is the most common sound file format used today.
.msvA Sony proprietary format for Memory Stick compressed voice files.
.ogg, .oga, .moggA free, open source container format supporting a variety of formats, the most popular of which is the audio format Vorbis. Vorbis offers compression similar to MP3 but is less popular. Mogg, the “Multi-Track-Single-Logical-Stream Ogg-Vorbis”, is the multi-channel or multi-track Ogg file format.
.rawA raw file can contain audio in any format but is usually used with PCM audio data. It is rarely used except for technical tests.
.wavStandard audio file container format used mainly in Windows PCs. Commonly used for storing uncompressed (PCM), CD-quality sound files, which means that they can be large in size—around 10 MB per minute.
.wmaWindows Media Audio format, created by Microsoft. Designed with Digital Rights Management (DRM) abilities for copy protection.
.webmRoyalty-free format created for HTML5 video.

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