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MPEG-4 Audio Lossless: final specifications, ...and first encoder is available!
guruboolez
post Dec 28 2005, 22:43
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This moment was awaited for a long time, MPEG-4 lossless audio (ALS) specifications are now ready. Standardization were finalized recently and it was announced in Japan by the NTT company (source: here and in french)

MAIN FEATURES:

• Support for PCM resolutions of up to 32-bit at arbitrary sampling rate (including 16/44.1, 16/48, 24/48, 24/96, 24/192).
• Multi-channel / multi-track support for up to 65536 channels (including 5.1 surround).
• Support for 32-bit IEEE floating point audio data.
• Optional storage in MP4 file format (allows multiplex with video).

more info: here
download page: here
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Posts in this topic
- guruboolez   MPEG-4 Audio Lossless: final specifications   Dec 28 2005, 22:43
- - guruboolez   I'm currently running a comparison between the...   Dec 28 2005, 22:48
|- - David Nordin   QUOTE (guruboolez @ Dec 28 2005, 10:48 PM)I...   Dec 28 2005, 23:03
- - guruboolez   Usage (for interested people): CODEmp4alsRM16 - M...   Dec 28 2005, 22:58
- - skelly831   Scince this MPEG-4 lossless audio is standardized,...   Dec 28 2005, 23:28
|- - guruboolez   QUOTE (skelly831 @ Dec 28 2005, 11:28 PM)Scin...   Dec 28 2005, 23:34
|- - Busemann   Pretty cool. The big question now is who will adop...   Dec 28 2005, 23:41
||- - Synaptic Line Noise   QUOTE (Busemann @ Dec 28 2005, 05:41 PM)Prett...   Jan 5 2006, 05:34
||- - extesy   QUOTE (Synaptic Line Noise @ Jan 5 2006, 08:3...   Jan 5 2006, 11:44
||- - TCM   QUOTE (Synaptic Line Noise @ Jan 5 2006, 06:3...   Jan 28 2006, 07:59
|- - skelly831   QUOTE (guruboolez @ Dec 28 2005, 02:34 PM)QUO...   Dec 28 2005, 23:50
- - HotshotGG   Yes, it uses BSAC (Bit-slice arithmetic coding). C...   Dec 29 2005, 00:17
|- - Garf   QUOTE (HotshotGG @ Dec 29 2005, 01:17 AM)Yes,...   Dec 29 2005, 11:02
- - Zoom   I tried a few encodings just to see the kind of co...   Dec 29 2005, 03:04
- - guruboolez   Before the bed: - WavPack 4.3 -fx5 - flac 1.1.2 -...   Dec 29 2005, 04:14
|- - miros   Ok, here is an encoding/decoding speed test. Album...   Dec 29 2005, 13:19
- - skamp   I did a small test on Where Is the Line by Björk, ...   Dec 29 2005, 04:28
|- - benski   Does anybody know what patents are being used in M...   Dec 29 2005, 05:30
||- - Garf   QUOTE (benski @ Dec 29 2005, 06:30 AM)Does an...   Dec 29 2005, 17:09
|- - DARcode   QUOTE (skamp @ Dec 29 2005, 05:28 AM)I did a ...   Dec 29 2005, 14:41
- - dreamliner77   Just out of curiosity, has anyone done bit compari...   Dec 29 2005, 08:06
|- - Zoom   QUOTE (dreamliner77 @ Dec 29 2005, 02:06 AM)J...   Dec 29 2005, 08:36
- - atici   Wasn't LPAC the codec chosen a while ago for M...   Dec 29 2005, 08:31
- - Garf   Try this: -b : Use BGMC codes for prediction resi...   Dec 29 2005, 10:53
- - Zurman   Thanks Guru for the comparisson   Dec 29 2005, 11:01
- - HotshotGG   QUOTE you are confusing it with SLS perhaps? SLS...   Dec 29 2005, 11:17
- - guruboolez   The table is updated on the second post of this th...   Dec 29 2005, 13:37
|- - pest   for the amount of muscles ALS is throwing at the p...   Dec 29 2005, 14:42
|- - David Nordin   QUOTE (pest @ Dec 29 2005, 02:42 PM)for the a...   Dec 29 2005, 16:35
|- - Borisz   QUOTE (David Nordin @ Dec 29 2005, 07:35 AM)Q...   Dec 29 2005, 16:48
|- - pest   QUOTE (David Nordin @ Dec 29 2005, 07:35 AM)t...   Dec 29 2005, 17:11
|- - Garf   QUOTE (pest @ Dec 29 2005, 06:11 PM)QUOTE (Da...   Dec 29 2005, 17:12
- - DARcode   Just my own little test: AMD Sempron64 3400+ Cors...   Dec 29 2005, 15:11
- - jcoalson   QUOTE (guruboolez @ Dec 28 2005, 04:43 PM)her...   Dec 29 2005, 18:06
|- - Garf   QUOTE (jcoalson @ Dec 29 2005, 07:06 PM)QUOTE...   Dec 29 2005, 18:08
- - jcoalson   heh, yeah I already built a linux binary. the rea...   Dec 29 2005, 22:46
|- - guruboolez   QUOTE (jcoalson @ Dec 29 2005, 10:46 PM)heh, ...   Dec 29 2005, 22:54
|- - miros   QUOTE (guruboolez @ Dec 29 2005, 10:54 PM)-7 ...   Dec 30 2005, 16:11
- - keytotime   Quick question, which app can play the als files?   Dec 30 2005, 01:21
- - BoraBora   A quick and dirty test. Timings are not accurate, ...   Dec 30 2005, 13:42
- - Garf   How slow and how compact is -7 -p -z3 ? Does it b...   Dec 30 2005, 14:12
|- - BoraBora   QUOTE (Garf @ Dec 30 2005, 03:12 PM)How slow ...   Dec 30 2005, 16:15
|- - Garf   QUOTE (BoraBora @ Dec 30 2005, 05:15 PM)It ma...   Dec 30 2005, 16:16
|- - BoraBora   QUOTE (Garf @ Dec 30 2005, 05:16 PM)Does it r...   Dec 30 2005, 16:23
- - keytotime   -7 -p -z3 does not work. -7 -p works. -z3 -p work...   Dec 30 2005, 15:07
|- - Garf   QUOTE (keytotime @ Dec 30 2005, 04:07 PM)-7 -...   Dec 30 2005, 15:37
- - keytotime   QUOTE -7 : Set parameters for optimum compression ...   Dec 30 2005, 15:40
|- - Garf   QUOTE (keytotime @ Dec 30 2005, 04:40 PM)QUOT...   Dec 30 2005, 15:42
- - keytotime   That the program says that it cann't work. -7 ...   Dec 30 2005, 15:45
|- - Garf   QUOTE (keytotime @ Dec 30 2005, 04:45 PM)That...   Dec 30 2005, 15:49
- - keytotime   *slap's himself with a trout* Sorry.   Dec 30 2005, 15:59
- - keytotime   yah that's what happen's to me to.   Dec 30 2005, 19:26
- - SirGrey   For me: -7 switch does not work with -z3 switch. O...   Dec 31 2005, 03:02
- - kode54   QUOTE (BoraBora @ Dec 30 2005, 07:23 AM)QUOTE...   Dec 31 2005, 08:44
|- - BoraBora   QUOTE (kode54 @ Dec 31 2005, 09:44 AM)System ...   Dec 31 2005, 12:39
- - jimhaddon   -7 -p -z3 doesnt work with me either, nor does -7 ...   Dec 31 2005, 10:28
- - jimhaddon   I have just run a few tests myself... Using the s...   Dec 31 2005, 11:19
- - SirGrey   System specs: WinXP SP1 C2600, Chaintech on Intel8...   Dec 31 2005, 12:45
- - keytotime   Xp Sp2 Celeron 2.7 ghz 1gb ram Soyo 845Pe motherbo...   Dec 31 2005, 14:08
- - jimhaddon   Ok, i did a few more tests, here are the results i...   Dec 31 2005, 15:46
- - Garf   I emailed the ALS people and it seems you guys wer...   Dec 31 2005, 15:55
- - jimhaddon   Well, i just tried out the -7 -p -t2 switches, and...   Dec 31 2005, 19:34
- - keytotime   Here is my results. Mp4 -7 -p -t2 40,756,102 bytes...   Dec 31 2005, 20:57
- - rjamorim   Interesting. Where is Heijden? I need to update my...   Jan 2 2006, 02:41
|- - Garf   QUOTE (rjamorim @ Jan 2 2006, 03:41 AM)And I ...   Jan 2 2006, 10:17
- - keytotime   You can add for software support, none as of yet. ...   Jan 2 2006, 04:00
- - skamp   Encoding speed: why is it reported as "slow...   Jan 4 2006, 02:36
|- - jcoalson   QUOTE (skamp @ Jan 3 2006, 08:36 PM)Seeking: ...   Jan 4 2006, 05:47
|- - rjamorim   QUOTE (skamp @ Jan 3 2006, 11:36 PM)Encoding ...   Jan 4 2006, 13:55
- - snookerdoodle   I'm not sure what I'm looking at here. Th...   Jan 4 2006, 18:53
- - keytotime   I wrote slow because the default takes longer than...   Jan 5 2006, 03:36
|- - skamp   QUOTE (keytotime @ Jan 5 2006, 03:36 AM)I wro...   Jan 5 2006, 13:03
- - Synaptic Line Noise   QUOTE • Multi-channel / multi-track support for up...   Jan 5 2006, 05:29
- - stephanV   The difference is that MP3 did not have much compe...   Jan 5 2006, 12:41
- - keytotime   Try Mp4 -7 -P or Mp4 -7 -p -t2   Jan 5 2006, 16:03
|- - skamp   QUOTE (keytotime @ Jan 5 2006, 04:03 PM)Try M...   Jan 5 2006, 17:52
- - Emanuel   QUOTE (stephanV @ Jan 5 2006, 12:41 PM)The di...   Jan 6 2006, 00:31
- - keytotime   Also the adoption of a loseless format would mean ...   Jan 6 2006, 04:13
|- - extesy   QUOTE (keytotime @ Jan 6 2006, 07:13 AM)Also ...   Jan 6 2006, 14:32
|- - Caroliano   QUOTE (extesy @ Jan 6 2006, 11:32 AM)Average ...   Jan 11 2006, 01:54
- - odyssey   Apart from a smaller filesize, what's so excit...   Jan 11 2006, 12:27
|- - Garf   QUOTE (odyssey @ Jan 11 2006, 01:27 PM)Apart ...   Jan 11 2006, 12:36
|- - snookerdoodle   QUOTE (odyssey @ Jan 11 2006, 05:27 AM)Apart ...   Jan 11 2006, 19:19
- - Wonderchan   Is there a directshow/winamp/etc decoder available...   Jan 16 2006, 17:57
- - JohanDeBock   Tested the reference encoder on my benchmark, seco...   Jan 22 2006, 16:16
- - satorippoi   Hey, guys, can anyone tell me what the command-lin...   Feb 22 2006, 01:00
- - kurtnoise   Seems like there is a bug fixed version and a new ...   Apr 6 2006, 20:09
|- - Josef Pohm   QUOTE (kurtnoise @ Apr 6 2006, 09:09 PM) ...   Apr 24 2006, 21:23
- - Liisachan   Just out of curiosity, what does S in ALS stand fo...   Apr 7 2006, 08:51
|- - wisodev   QUOTE Just out of curiosity, what does S in ALS st...   Apr 7 2006, 11:03
- - Liisachan   are you saying it's a recursive acronym? I don...   Apr 7 2006, 11:08
|- - wisodev   QUOTE are you saying it\\\'s a ...   Apr 7 2006, 11:47
|- - Garf   QUOTE (wisodev @ Apr 7 2006, 12:47 PM) QU...   Apr 7 2006, 11:48
- - wisodev   MPEG-4 ALS stands for Audio Lossless Coding or the...   Apr 7 2006, 11:57
- - Garf   Yes, we know what it stands for, but where does th...   Apr 7 2006, 12:57
- - Liisachan   Considering Audio Lossless Coding = ALS and Scala...   Apr 7 2006, 13:23
- - wisodev   MPEG-4 Audio Lossless Coding (ALS) Standard this ...   Apr 7 2006, 13:44
- - Gabriel   I think that it is Audio-LS (lossless), in a simil...   Apr 7 2006, 14:31
- - Garf   As far as I can see, only a small bugfix. Still no...   Apr 24 2006, 21:44
- - Josef Pohm   Not the most popular format around at the moment, ...   Sep 1 2006, 18:27
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