It allows additional data to be held in the file header.Ī Sony proprietary format for compressed voice files commonly used by Sony dictation recorders.įile format for the Free Lossless Audio Codec, a lossless compression codec.ĭesigned for telephony use in Europe, gsm is a very practical format for telephone quality voice. Gsm or mp3 are generally preferred where the recorder allows. It has dictation header information and can be encrypted (as may be required by medical confidentiality laws). The audio in au files can be PCM or compressed with the μ-law, a-law or G729 codecs.ĪMR-WB audio, used primarily for speech, same as the ITU-T's G.722.2 specification.Ī variable codec format designed for dictation. The standard audio file format used by Sun, Unix and Java. To open these files, install the ATRAC3 drivers. aac files are usually ADTS or ADIF containers.Īpple Lossless compression, a lossless compression format from Apple. The Advanced Audio Coding format is based on the MPEG-2 and MPEG-4 standards. It could be considered the Apple equivalent of wav. Standard audio file format used by Apple.
Amplifx primer list format mp4#
Multimedia container format can contain proprietary formats as AMR, AMR-WB or AMR-WB+, but also some open formatsĪCT is a lossy ADPCM 8 kbit/s compressed audio format recorded by most Chinese MP3 and MP4 players with a recording function, and voice recorders List of FormatsSee also: Comparison of audio formats and List of codecs
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