Here's a list of commonly used audio file formats: .3gp Multimedia container format can contain proprietary formats as AMR, AMR-WB or AMR-WB+, but also some open formats .aa Audible (Amazon) A low-bitrate audiobook container format with DRM, containing audio encoded as either MP3 or the ACELP speech codec. .aac The Advanced Audio Coding format is based on the MPEG-2 and MPEG-4 standards. AAC files are usually ADTS or ADIF containers. .aiff A standard uncompressed CD-quality, audio file format used by Apple. Established 3 years prior to Microsoft's uncompressed version wav. .amr AMR-NB audio, used primarily for speech. .au The 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 G.729 codecs. .cda Format for cda files for Radio. .dss DSS files are an Olympus proprietary format. DSS files use a high compression rate, which reduces the file size and allows files to be copied and transferred quickly. It allow...
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