Mp3HD: Difference between revisions

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| url                    = http://www.all4mp3.com/
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'''MPEG-1 Audio Layer III HD''', more commonly known and advertised by its abbreviation '''mp3HD''', is an audio compression [[codec]] developed by Technicolor formerly known as Thomson.<ref>[http://crave.cnet.co.uk/digitalmusic/mp3hd-new-lossless-mp3-format-explained-49301678/ mp3HD: New lossless MP3 format explained]</ref> It achieves [[lossless]] data compression, and is backwards compatible with the [[MP3]] format by storing two data streams in one file.<ref>[https://arstechnica.com/information-technology/2009/03/new-lossless-mp3hd-format-trades-convenience-for-file-size/ New lossless mp3HD format trades convenience for file size | Ars Technica]</ref>
'''MPEG-1 Audio Layer III HD''', more commonly known and advertised by its abbreviation '''mp3HD''', is a legacy audio [[codec]] developed by Technicolor (formerly known as Thomson).<ref>[http://crave.cnet.co.uk/digitalmusic/mp3hd-new-lossless-mp3-format-explained-49301678/ mp3HD: New lossless MP3 format explained]</ref> It is a [[hybrid codec|lossless/lossy hybrid]] extension of the [[MP3]] format, containing an ordinary mp3 stream and then an ID3 block to store correction data for lossless playback in an mp3HD-aware player. <ref>[https://www.rarewares.org/rrw/fhgmp3hd.php FhG/Technicolor mp3HD]  at ReallyRareWares</ref><ref>[https://arstechnica.com/information-technology/2009/03/new-lossless-mp3hd-format-trades-convenience-for-file-size/ New lossless mp3HD format trades convenience for file size | Ars Technica]</ref><ref>[https://en.wikipedia.org/wiki/Mp3HD mp3HD] at Wikipedia</ref>


As of April 2013, the mp3HD website, specification and encoder software are no longer available, and promotion of the format appears to have been abandoned.
mp3HD was offered as freeware encoder/decoder, player, Winamp plugin DirectShow filter downloadable from its website<ref>[http://www.all4mp3.com/tools/mp3HD-tools.php All4mp3 | The tools - mp3HD tools] {{webarchive|https://web.archive.org/web/20130322024023/http://www.all4mp3.com/tools/mp3HD-tools.php|2013-03-22}}</ref>, which were abandoned some time around April 2013.  At the time, it supported 16-bit [[PCM]] at 44.1 kHz (CD audio) and 48&nbsp;kHz.<ref>[http://www.all4mp3.com/learn/mp3HD.php All4mp3 | Learn - mp3HD] {{webarchive|https://web.archive.org/web/20130216021454/http://www.all4mp3.com/learn/mp3HD.php|2013-02-16}}</ref>


==Encoding==
So far, the only available mp3HD encoder is the Technicolor toolkit which contains a command-line encoder and decoder. This can be used with [[Exact Audio Copy]] to rip [[CD]]s to [[WAV]] and then automatically convert them to mp3HD files. Another method, only available for Windows is the mp3HD Converter, which converts already uncompressed WAV to mp3HD and can also decompress them back to WAV. Currently mp3HD supports CD audio ([[PCM]]) at 44.1 and 48&nbsp;kHz sampling rates at 16 bit/sample.<ref>[http://www.all4mp3.com/learn/mp3HD.php All4mp3 | Learn - mp3HD] {{webarchive|https://web.archive.org/web/20130216021454/http://www.all4mp3.com/learn/mp3HD.php|2013-02-16}}</ref>
==See also==
* [[Lossless|Lossless compression]]


==References==
==References==
<references/>
<references/>


==External links==
* [http://www.all4mp3.com/learn/mp3HD.php All4mp3 | Learn - mp3HD] {{webarchive|https://web.archive.org/web/20130216021454/http://www.all4mp3.com/learn/mp3HD.php|2013-02-16}}
* [http://www.all4mp3.com/tools/mp3HD-tools.php All4mp3 | The tools - mp3HD tools] {{webarchive|https://web.archive.org/web/20130322024023/http://www.all4mp3.com/tools/mp3HD-tools.php|2013-03-22}}
* {{wikipedia|mp3HD}}


{{navbox audio codecs}}
{{navbox audio codecs}}


[[Category:Lossless audio codecs]]
[[Category:Codecs]]

Latest revision as of 19:55, 27 January 2022

MPEG-1 Audio Layer III HD
Filename extension(s) .mp3
Media type
Developed by Technicolor
Initial release 2009; 15 years ago
Latest release 1.5 (February 2, 2010; 14 years ago)
Type of format Lossless audio codec
Container for
Contained by
Extended from MP3, MPEG-1 Audio Layer III
Extended to
Standard
Open format?
Website http://www.all4mp3.com/

MPEG-1 Audio Layer III HD, more commonly known and advertised by its abbreviation mp3HD, is a legacy audio codec developed by Technicolor (formerly known as Thomson).[1] It is a lossless/lossy hybrid extension of the MP3 format, containing an ordinary mp3 stream and then an ID3 block to store correction data for lossless playback in an mp3HD-aware player. [2][3][4]

mp3HD was offered as freeware encoder/decoder, player, Winamp plugin DirectShow filter downloadable from its website[5], which were abandoned some time around April 2013. At the time, it supported 16-bit PCM at 44.1 kHz (CD audio) and 48 kHz.[6]


References

  1. ↑ mp3HD: New lossless MP3 format explained
  2. ↑ FhG/Technicolor mp3HD at ReallyRareWares
  3. ↑ New lossless mp3HD format trades convenience for file size | Ars Technica
  4. ↑ mp3HD at Wikipedia
  5. ↑ All4mp3 | The tools - mp3HD tools (archived on March 22, 2013)
  6. ↑ All4mp3 | Learn - mp3HD (archived on February 16, 2013)


Audio codecs: type/usage for end-users to encode on physical media etc. legacy formats
Lossless (Uncompr. LPCM) • ALAC • FLAC • Monkey's Audio • MPEG-4 ALS • OptimFROG • TAK • TTA • WavPack MLP/Dolby TrueHD La • LPAC/LTAC • RealAudio Lossless • RK Audio • Shorten • WMA Lossless • (others)
Lossy (ADPCM formats) • AAC • AC-3 • MP2 • MP3 • Musepack • Opus • Vorbis AC-3 • DTS • (Bluetooth codecs) ATRAC • QDesign • Real Audio • RK Audio (lossy modes) • Speex • VQF • WMA
Hybrid lossless&lossy OptimFROG DualStream • WavPack DTS-HD MA • MPEG-4 SLS ATRAC Advanced Lossless • mp3HD
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