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1161:(Adaptive Differential Pulse Code Modulation) codec. Similar to other ADPCM formats, it compresses to 4-bits. Vox format files are similar to wave files except that the vox files contain no information about the file itself so the codec sample rate and number of channels must first be specified in order to play a vox file.
373:
Uncompressed audio formats encode both sound and silence with the same number of bits per unit of time. Encoding an uncompressed minute of absolute silence produces a file of the same size as encoding an uncompressed minute of music. In a lossless compressed format, however, the music would occupy a
1024:
A 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.
1042:
A lossy audio compression format developed by the
Internet Engineering Task Force (IETF) and made especially suitable for interactive real-time applications over the Internet. As an open format standardised through RFC 6716, a reference implementation is provided under the 3-clause BSD license.
797:
Designed for telephony use in Europe, GSM is used to store telephone voice messages and conversations. With a bitrate of 13 kbit/s, GSM files can compress and encode audio at telephone quality. Note that WAV files can also be encoded with the GSM codec.
1190:), CD-quality sound files, which means that they can be large in size—around 10 MB per minute. Wave files can also contain data encoded with a variety of (lossy) codecs to reduce the file size (for example the GSM or MP3 formats). Wav files use a
405:
Lossy audio format enables even greater reductions in file size by removing some of the audio information and simplifying the data. This, of course, results in a reduction in audio quality, but a variety of techniques are used, mainly by exploiting
397:(Apple Lossless). They provide a compression ratio of about 2:1 (i.e. their files take up half the space of PCM). Development in lossless compression formats aims to reduce processing time while maintaining a good compression ratio.
101:. A codec performs the encoding and decoding of the raw audio data while this encoded data is (usually) stored in a container file. Although most audio file formats support only one type of audio coding data (created with an
928:
A Samsung audio format that is used in ringtones. Developed by Yamaha (SMAF stands for "Synthetic music Mobile
Application Format", and is a multimedia data format invented by the Yamaha Corporation, .mmf file format).
754:
proprietary format. DSS files use a high compression rate, which reduces the file size and allows files to be copied and transferred quickly. It allows additional data to be held in the file header.
880:
container. Both M4A and M4B formats can contain metadata including chapter markers, images, and hyperlinks, but M4B allows "bookmarks" (remembering the last listening spot), whereas M4A does not.
350:(EBU Technical document 3285, July 1997). This is the primary recording format used in many professional audio workstations in the television and film industry. BWF files include a standardized
354:
reference which allows for easy synchronization with a separate picture element. Stand-alone, file based, multi-track recorders from AETA, Sound
Devices, Zaxcom, HHB Communications Ltd,
811:
An iKlax Media proprietary format, the iKlax format is a multi-track digital audio format allowing various actions on musical data, for instance on mixing and volumes arrangements.
370:
A lossless compressed audio format stores data in less space without losing any information. The original, uncompressed data can be recreated from the compressed version.
410:, to remove the parts of the sound that have the least effect on perceived quality, and to minimize the amount of audible noise added during the process. The popular
1114:. Prior to v.10 the standard formats were 16-bit Signed Linear PCM sampled at 8 kHz and at 16 kHz. With v.10 many more sampling rates were added.
603:
ACT 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
330:. Since WAV and AIFF are widely supported and can store LPCM, they are suitable file formats for storing and archiving an original recording.
1308:
1068:
format allows files to be stored in a self-contained fashion on a computer, with all of the audio data contained inside the file itself.
1528:
1303:
431:
944:
An Apple audio format primarily used for
Lossless and Hi-Res audio files through Apple Music. Also used for storing Apple TV videos.
620:
A standard uncompressed CD-quality, audio file format used by Apple. Established 3 years prior to
Microsoft's uncompressed version
1082:
A raw file can contain audio in any format but is usually used with PCM audio data. It is rarely used except for technical tests.
1191:
307:
1037:
973:
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developed by 3D Solar UK Ltd for use in music downloaded from their Tronme Music Store and interactive music and video player.
464:
418:
found on the iTunes Music Store is also common. Most formats offer a range of degrees of compression, generally measured in
972:
Musepack or MPC (formerly known as MPEGplus, MPEG+ or MP+) is an open source lossy audio codec, specifically optimized for
609:
299:
125:
1485:
expertise, Mark Harris Brings music; Producer, Including a
Background as a Music; composer; Articles, To Digital Music.
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310:(RIFF). WAV and AIFF are designed to store a wide variety of audio formats, lossless and lossy; they just add a small,
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The file format consists of a 26-byte header and a series of subsequent data blocks containing the audio information
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314:-containing header before the audio data to declare the format of the audio data, such as LPCM with a particular
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Music Store. Audio within the m4a file is typically encoded with AAC, although lossless ALAC may also be used.
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The IFF-8SVX format for 8-bit sound samples, created by
Electronic Arts in 1984 at the birth of the Amiga.
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A Sony proprietary format for compressed voice files; commonly used by Sony dictation recorders.
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An audio coding format developed by Apple Inc. for lossless data compression of digital music.
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A file format for the Free
Lossless Audio Codec, an open-source lossless compression codec.
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422:. The lower the rate, the smaller the file and the more significant the quality loss.
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An audio-only MPEG-4 file, used by Apple for unprotected music downloaded from their
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1505:"Asterisk 10 Codecs and Audio Formats - Asterisk Project - Asterisk Project Wiki"
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as a successor to WAV. Among other enhancements, BWF allows more robust
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smaller file than an uncompressed format and the silence would take up
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European
Broadcasting Union: Specification of the Broadcast Wave Format
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One successor to the Wav format, overcoming the 4GiB size limitation.
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compression of stereo audio at bitrates of 160–180 kbit/s.
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A Sony proprietary format for Memory Stick compressed voice files.
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336:(Broadcast Wave Format) is a standard audio format created by the
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Windows Media Audio format, created by Microsoft. Designed with
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Multimedia container format can contain proprietary formats as
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format, which is a variable-bitrate (allowing high quality)
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and is the format most commonly accepted by low level audio
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format designed for streaming audio over the Internet. The
73:
in an audio coding format, but it is usually embedded in a
901:
developed by Apple for use in music downloaded from their
1397:
278:
hardware. Although LPCM can be stored on a computer as a
905:
Music Store and their music streaming service known as
1379:
113:) may support multiple types of audio and video data.
729:
AMR-WB audio, used primarily for speech, same as the
439:
1182:
Standard audio file container format used mainly in
116:
There are three major groups of audio file formats:
77:
or an audio data format with defined storage layer.
53:
system. The bit layout of the audio data (excluding
1415:
448:
670:Monkey's Audio lossless audio compression format.
306:(IFF), and the WAV format is based on the similar
1434:"The Digital Speech Standard (DSS & DSS Pro)"
527:The Advanced Audio Coding format is based on the
1126:The True Audio, real-time lossless audio codec.
1157:The vox format most commonly uses the Dialogic
1186:PCs. Commonly used for storing uncompressed (
8:
414:is probably the best-known example, but the
140:; Note wav can also use compression as well.
202:Windows Media Audio Lossless (WMA Lossless)
85:It is important to distinguish between the
655:AMR-NB audio, used primarily for speech.
266:, is the same variety of PCM as used in
1335:
687:The standard audio file format used by
362:all use BWF as their preferred format.
1309:Comparison of video container formats
505:, containing audio encoded as either
381:Lossless compression formats include
262:One major uncompressed audio format,
241:Windows Media Audio Lossy (WMA lossy)
105:), a multimedia container format (as
65:to reduce the file size, often using
7:
1459:Andrea Teafancy (October 12, 2023).
120:Uncompressed audio formats, such as
1304:Comparison of audio coding formats
897:A version of AAC with proprietary
432:Comparison of audio coding formats
25:
1110:Signed Linear PCM format used by
589:container. (More details below.)
535:standards. AAC files are usually
27:Computer format for digital audio
1319:List of open-source audio codecs
1281:Format for cda files for Radio.
366:Lossless compressed audio format
308:Resource Interchange File Format
1215:abilities for copy protection.
1038:Internet Engineering Task Force
699:. The audio in au files can be
344:to be stored in the file. See
302:(AIFF) format is based on the
1:
475:, but also some open formats
401:Lossy compressed audio format
300:Audio Interchange File Format
1346:. 2016-01-29. Archived from
282:, it is usually stored in a
61:and can be uncompressed, or
824:A proprietary version with
338:European Broadcasting Union
1550:
1344:"AETA AUDIO SYSTEMS: home"
1314:Comparison of video codecs
1229:Format for wavpack files.
733:'s G.722.2 specification.
429:
268:Compact Disc Digital Audio
251:
1529:Digital container formats
1487:"What is the M4b Format?"
1324:Timeline of audio formats
445:
442:
248:Uncompressed audio format
1299:Audio compression (data)
1007:Media Player audio file
69:. The data can be a raw
703:or compressed with the
304:Interchange File Format
1461:"What's an .GSM file?"
1362:"Sound Devices - Home"
501:container format with
34:
958:MPEG Layer III Audio
215:compression, such as
33:
1366:www.sounddevices.com
1350:on January 29, 2016.
876:encoded audio in an
585:encoded audio in an
573:file encrypted with
358:, Nagra, Aaton, and
145:lossless compression
1246:format created for
1139:Creative Technology
1020:Xiph.Org Foundation
177:Advanced Lossless,
87:audio coding format
59:audio coding format
1534:Audio file formats
667:Matthew T. Ashland
258:Uncompressed video
183:filename extension
168:filename extension
157:filename extension
35:
1509:wiki.asterisk.org
1440:. August 11, 2020
1294:Video file format
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1014:.ogg, .oga, .mogg
750:DSS files are an
446:Creation Company
67:lossy compression
39:audio file format
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408:psychoacoustics
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1470:November 14,
1468:. Retrieved
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1444:November 14,
1442:. Retrieved
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543:containers.
449:Description
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84:
81:Format types
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