Audio file format: Difference between revisions
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imported>Very high frequency m Reverted 1 edit by ~2026-27723-44 (talk) to last revision by Nick Levine |
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| <code>[[MPEG-4 Part 14#Filename extensions|.m4b]]</code> || || An [[Audiobook]] / [[podcast]] extension with [[Advanced Audio Coding|AAC]] or [[Apple Lossless Audio Codec|ALAC]] encoded audio in an [[MPEG-4]] 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.<ref>{{cite web|url=https://www.lifewire.com/what-is-m4b-format-2438562|title=What is the M4b Format?|first1=Mark Harris Brings music|last1=expertise|first2=Including a Background as a Music|last2=Producer|last3=composer|first4=To Digital Music|last4=Articles|website=Lifewire}}</ref> | | <code>[[MPEG-4 Part 14#Filename extensions|.m4b]]</code> || || An [[Audiobook]] / [[podcast]] extension with [[Advanced Audio Coding|AAC]] or [[Apple Lossless Audio Codec|ALAC]] encoded audio in an [[MPEG-4]] 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.<ref>{{cite web|url=https://www.lifewire.com/what-is-m4b-format-2438562|title=What is the M4b Format?|first1=Mark Harris Brings music|last1=expertise|first2=Including a Background as a Music|last2=Producer|last3=composer|first4=To Digital Music|last4=Articles|website=Lifewire}}</ref> | ||
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| <code>[[.m4p]]</code> || [[Apple Inc.|Apple]] || A version of AAC with proprietary [[Digital rights management|DRM]] developed by Apple for use in music downloaded from their [[iTunes]] Music Store | | <code>[[.m4p]]</code> || [[Apple Inc.|Apple]] || A version of AAC with proprietary [[Digital rights management|DRM]] developed by Apple for use in their music streaming service known as [[Apple Music]] and was used for music downloaded from their [[iTunes]] Music Store.<ref>{{Cite news |last=Johnson |first=Bobbie |last2=Francisco |first2=San |date=2009-01-06 |title=Apple drops DRM copy protection from millions of iTunes songs |url=https://www.theguardian.com/technology/2009/jan/06/apple-drops-itunes-copy-protection |access-date=2025-09-14 |work=The Guardian |language=en-GB |issn=0261-3077}}</ref> | ||
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| <code>.mmf</code> || [[Yamaha Corporation|Yamaha]], [[Samsung]] || 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). | | <code>.mmf</code> || [[Yamaha Corporation|Yamaha]], [[Samsung]] || 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). | ||
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| <code>[[RF64|.rf64]]</code> || || One successor to the WAV format, overcoming the 4GiB size limitation. | | <code>[[RF64|.rf64]]</code> || || One successor to the WAV format, overcoming the 4GiB size limitation. | ||
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| <code>[[Linear PCM|.sln]]</code> || || Signed Linear PCM format used by [[Asterisk (PBX)|Asterisk]]. 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.<ref>{{cite web|url=https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats|title=Asterisk 10 Codecs and Audio Formats - Asterisk Project - Asterisk Project Wiki|website=wiki.asterisk.org}}</ref> | | <code>[[Linear PCM|.sln]]</code> || || Signed Linear PCM format used by [[Asterisk (PBX)|Asterisk]]. 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.<ref>{{cite web|url=https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats|title=Asterisk 10 Codecs and Audio Formats - Asterisk Project - Asterisk Project Wiki|website=wiki.asterisk.org|access-date=2014-11-20|archive-date=2014-11-29|archive-url=https://web.archive.org/web/20141129031505/https://wiki.asterisk.org/wiki/display/AST/Asterisk+10+Codecs+and+Audio+Formats|url-status=dead}}</ref> | ||
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| <code>.tta</code> || || The True Audio, real-time lossless audio codec. | | <code>.tta</code> || || The True Audio, real-time lossless audio codec. | ||