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lossless mp3 - mp3HD, backwards compatible with standard mp3
2Bdecided
post Mar 19 2009, 17:33
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QUOTE
  • mp3HD is a lossless audio codec (100% bit-exact replica of CD tracks)
  • Backward Compatible to mp3
  • File extension .mp3
  • Bitrates for music approximately 500 to 900 kbps rates (similar to other lossless codecs), depending on genre
  • Embedded mp3 track and the mp3HD file share the same id3 metadata
  • Encoding parameters (e.g. bit rate), ancillary data and meta data of embedded mp3 track are under control


Main page:
http://www.all4mp3.com/Learn_mp3_hd_1.aspx

...which links to downloadable test software:
http://www.all4mp3.com/Software3.aspx

I learnt about this from this post...
http://forum.doom9.org/showthread.php?p=1263465#post1263465
...where a quick test suggests it's not as efficient as FLAC, or as fast.

Might be useful for a widely-compatible lossy/lossless hybrid.

I wonder if they've done something clever - when I tried this years ago, mp3 was a terrible base for lossless coding - the lossy>lossless "correction" file was often larger than a straight lossless encode. Maybe this new technology is more tightly integrated into mp3, so performs better?

Cheers,
David.

This post has been edited by 2Bdecided: Mar 19 2009, 17:36
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Posts in this topic
- 2Bdecided   lossless mp3 - mp3HD   Mar 19 2009, 17:33
- - ameyer17   QUOTE (2Bdecided @ Mar 19 2009, 09:33) I ...   Mar 19 2009, 21:17
- - saivert   This format must for the love of everything good n...   Mar 19 2009, 21:27
- - LANjackal   If it were really backward compatible, why does it...   Mar 19 2009, 23:23
|- - guruboolez   QUOTE (LANjackal @ Mar 19 2009, 23:23) If...   Mar 20 2009, 00:02
|- - Silversight   QUOTE (guruboolez @ Mar 20 2009, 00:02) W...   Mar 20 2009, 00:31
- - guruboolez   @Silversight Good point! It works. I guess tha...   Mar 20 2009, 00:56
- - ameyer17   QUOTE (ameyer17 @ Mar 19 2009, 13:17) If ...   Mar 20 2009, 02:36
- - Destroid   Awhile back I wondered who would be the first to i...   Mar 20 2009, 02:49
- - guruboolez   I investigate a bit further with this encoder. ...   Mar 20 2009, 13:01
- - menno   If you want to know how it works, look at MPEG-4 S...   Mar 20 2009, 15:00
- - guruboolez   Thanks menno. Before someone asks, MP3HD doesn...   Mar 20 2009, 15:54
|- - menno   QUOTE (guruboolez @ Mar 20 2009, 06:54) T...   Mar 20 2009, 16:11
- - guruboolez   Thank you again menno for this clarification I wo...   Mar 20 2009, 16:50
- - callisto   When many customers doesn't even know file ext...   Mar 20 2009, 17:21
- - Peter   Useless format: The lossless part is stored in ID3...   Mar 20 2009, 17:34
|- - rpp3po   QUOTE (Peter @ Mar 20 2009, 17:34) Useles...   Mar 20 2009, 17:47
||- - menno   QUOTE (rpp3po @ Mar 20 2009, 08:47) QUOTE...   Mar 20 2009, 18:04
|||- - rpp3po   QUOTE (menno @ Mar 20 2009, 18:04) Lossy ...   Mar 20 2009, 21:48
|||- - menno   QUOTE (rpp3po @ Mar 20 2009, 12:48) QUOTE...   Mar 20 2009, 22:15
|||- - rpp3po   QUOTE (menno @ Mar 20 2009, 22:15) Not ju...   Mar 20 2009, 22:24
|||- - menno   QUOTE (rpp3po @ Mar 20 2009, 13:24) QUOTE...   Mar 20 2009, 22:46
||||- - aconverse   QUOTE (menno @ Mar 20 2009, 17:46) QUOTE ...   Mar 22 2009, 18:36
|||- - Mike Giacomelli   QUOTE (rpp3po @ Mar 20 2009, 16:24) QUOTE...   Mar 20 2009, 22:48
|||- - rpp3po   Well, then a packaged integer only decoder would b...   Mar 21 2009, 00:14
||- - Brent   QUOTE (rpp3po @ Mar 20 2009, 17:47) I wou...   Mar 20 2009, 19:18
|- - guruboolez   QUOTE (Peter @ Mar 20 2009, 17:34) [*]Siz...   Mar 20 2009, 18:03
|- - Alex B   QUOTE (Peter @ Mar 20 2009, 18:34) Useles...   Mar 20 2009, 19:45
- - guruboolez   QUOTE (callisto @ Mar 20 2009, 17:21) Whe...   Mar 20 2009, 17:59
|- - DOS386   QUOTE (Peter @ Mar 20 2009, 10:34) Useles...   Mar 21 2009, 12:04
|- - guruboolez   QUOTE (DOS386 @ Mar 21 2009, 12:04) None ...   Mar 21 2009, 12:25
|- - seanyseansean   QUOTE (guruboolez @ Mar 21 2009, 12:25) Q...   Mar 21 2009, 21:16
- - callisto   @guruboolez Ok, I get your point... But still thin...   Mar 20 2009, 18:10
|- - menno   QUOTE (callisto @ Mar 20 2009, 09:10) @gu...   Mar 20 2009, 18:14
|- - guruboolez   QUOTE (callisto @ Mar 20 2009, 18:10) And...   Mar 20 2009, 18:20
- - lvqcl   some test files encoded with flac -8: 477 MB, or 9...   Mar 20 2009, 19:34
- - monoton   How do I get an mp3 file that is of exact length a...   Mar 20 2009, 19:43
|- - lvqcl   QUOTE (monoton @ Mar 20 2009, 21:43) How ...   Mar 20 2009, 20:16
- - Alex B   I did some gapless playback tests. The -ofl switc...   Mar 20 2009, 20:39
- - m0rbidini   Oh my... The only good thing that comes to mind wh...   Mar 21 2009, 03:43
- - N!Ce   Interesting read. I basically agree with guruboole...   Mar 21 2009, 14:29
|- - shakey_snake   QUOTE (N!Ce @ Mar 21 2009, 09:29) Int...   Mar 21 2009, 18:59
- - lvqcl   About quality of MP3 part: I encoded the same file...   Mar 21 2009, 22:27
- - kode54   I tried replacing the lossy portion with LAME enco...   Mar 22 2009, 01:56
- - lvqcl   http://www.hydrogenaudio.org/forums/index....st...   Mar 22 2009, 19:48
|- - SebastianG   QUOTE (lvqcl @ Mar 22 2009, 19:48) http:/...   Mar 23 2009, 09:38
|- - menno   QUOTE (SebastianG @ Mar 23 2009, 00:38) Q...   Mar 23 2009, 14:54
|- - SebastianG   QUOTE (menno @ Mar 23 2009, 14:54) It...   Mar 23 2009, 16:02
- - cybertoon   heres a sample for you all HD VBR 1: http://rapids...   Mar 22 2009, 20:18
- - Mike Giacomelli   I think you could do this with mp3 like follows: ...   Mar 22 2009, 20:19
- - odyssey   I don't really know what I should think of thi...   Mar 23 2009, 00:20
- - ameyer17   You would theoretically be able to strip the lossl...   Mar 23 2009, 02:20
- - wnmnkh   As concept this codec has great potential (maybe c...   Mar 26 2009, 02:08
|- - WUXGA   QUOTE (wnmnkh @ Mar 25 2009, 18:08) As co...   Mar 26 2009, 02:50
- - funkyblue   I WAS all excited when I read about it on some web...   Mar 27 2009, 03:28
- - monoton   Well... I don't get it... I extracted a correc...   Mar 29 2009, 22:26
- - funkyblue   Unless they invented a fully lossless MP3 format, ...   Mar 30 2009, 02:47
- - doccolinni   While I agree with everyone who says that this is ...   Jun 14 2009, 06:55
- - lvqcl   QUOTE I wonder if a proper lossless encoder which ...   Jun 14 2009, 08:57
- - doccolinni   QUOTE white noise cannot be compressed at all loss...   Jun 14 2009, 09:10
- - jcoalson   frequency domain prediction has been tried. befor...   Jun 14 2009, 20:00
|- - doccolinni   QUOTE (jcoalson @ Jun 14 2009, 21:00) fre...   Jun 14 2009, 22:06
- - /mnt   This format is just as useless as Pulseaudio.   Jun 14 2009, 20:19
- - servimo   I want to know if exists a plugin for foobar2000 f...   Mar 7 2010, 22:46
- - servimo   Found information about: Will there be suport for ...   Mar 8 2010, 02:53
|- - Mike Giacomelli   QUOTE (servimo @ Mar 7 2010, 20:53) Found...   Mar 8 2010, 03:44
- - NetRanger   Is this encoder still available somewhere out ther...   Apr 22 2013, 17:58
|- - C.R.Helmrich   The web site of the German IT magazine CHIP has ap...   Apr 22 2013, 23:22
|- - NetRanger   QUOTE (C.R.Helmrich @ Apr 23 2013, 00:22)...   Apr 22 2013, 23:59
- - mrmarbach   A label I am friendly with just started selling MP...   Jul 19 2013, 19:46
- - eahm   And... why are people still using or ever used mp3...   Jul 20 2013, 02:18
- - Rotareneg   Because it's "HD".   Jul 20 2013, 06:17


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