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Opus 1.1 released, For real this time
jmvalin
post Dec 6 2013, 03:56
Post #1


Xiph.org Speex developer


Group: Developer
Posts: 482
Joined: 21-August 02
Member No.: 3134



After more than two years of development, we have released Opus 1.1. This includes:
  • new analysis code and tuning that significantly improves encoding quality, especially for variable-bitrate (VBR)
  • automatic detection of speech or music to decide which encoding mode to use.
  • surround with good quality at 128 kbps for 5.1 and usable down to 48 kbps.
  • speed improvements on all architectures, especially ARM, where decoding uses around 40% less CPU and encoding uses around 30% less CPU.
These improvements are explained in more details in Monty's demo (updated from the 1.1 beta demo).
Of course, this new version is still fully compliant with the Opus specification (RFC 6716).
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Posts in this topic
- jmvalin   Opus 1.1 released   Dec 6 2013, 03:56
- - IgorC   Thank You to all developers and people involved in...   Dec 6 2013, 06:15
- - themanintheshadows_2451   I wonder how long it'll take to get a binary?   Dec 6 2013, 08:15
|- - eahm   QUOTE (themanintheshadows_2451 @ Dec 6 2013, ...   Dec 6 2013, 08:20
- - RobertM   Big thanks to the Opus team. This is a fantastic r...   Dec 6 2013, 09:19
- - darkbyte   Thank you! Is there a list somewhere which de...   Dec 6 2013, 10:20
|- - jmvalin   QUOTE (darkbyte @ Dec 6 2013, 04:20) Than...   Dec 6 2013, 10:32
|- - vinnie97   QUOTE (darkbyte @ Dec 6 2013, 02:20) I...   Dec 11 2013, 22:40
- - Anakunda   QUOTE surround with good quality at 128 kbps for 5...   Dec 6 2013, 11:22
|- - Octocontrabass   QUOTE (Anakunda @ Dec 6 2013, 02:22) I...   Dec 7 2013, 02:27
- - includemeout   QUOTE (jmvalin @ Dec 6 2013, 04:56) (...)...   Dec 6 2013, 11:38
|- - ChronoSphere   I wanted to post the results of rockbox runtime on...   Dec 6 2013, 13:44
- - TomasPin   Guess I'll finally give this a try, thanks for...   Dec 6 2013, 18:23
- - IgorC   1.1 had a stable quality already starting from alp...   Dec 6 2013, 21:39
- - LigH   Are there again public ABX listening tests, like t...   Dec 6 2013, 21:44
- - IgorC   Last time we have organized test it was 2011 and t...   Dec 6 2013, 21:54
- - ChristianK   This new release is great! Seems to perform ju...   Dec 7 2013, 14:33
|- - ChronoSphere   Looks like rockbox+opus now manages to squeeze out...   Dec 7 2013, 21:48
|- - saratoga   QUOTE (ChronoSphere @ Dec 7 2013, 16:48) ...   Dec 7 2013, 21:50
|- - ChronoSphere   I think it's because of the settings. MP3 one ...   Dec 7 2013, 23:51
- - eahm   Can you test AAC? Particularly Apple's AAC?   Dec 8 2013, 03:07
|- - ChronoSphere   QUOTE (eahm @ Dec 8 2013, 03:07) Can you ...   Dec 8 2013, 13:41
|- - eahm   QUOTE (ChronoSphere @ Dec 8 2013, 05:41) ...   Dec 8 2013, 16:16
- - Steve Forte Rio   Documentation (opusenc.html) claims that Opus supp...   Dec 8 2013, 08:02
|- - jmvalin   QUOTE (Steve Forte Rio @ Dec 8 2013, 02:0...   Dec 8 2013, 08:27
|- - Steve Forte Rio   QUOTE (jmvalin @ Dec 8 2013, 05:27) Not a...   Dec 8 2013, 08:57
|- - jmvalin   QUOTE (Steve Forte Rio @ Dec 8 2013, 02:5...   Dec 8 2013, 10:06
- - Steve Forte Rio   If the minimum bitrate is 6 kbps per channel (as s...   Dec 8 2013, 11:17
|- - Kamedo2   QUOTE (Steve Forte Rio @ Dec 8 2013, 19:1...   Dec 8 2013, 11:42
|- - bawjaws   QUOTE (Steve Forte Rio @ Dec 8 2013, 03:1...   Dec 11 2013, 14:06
|- - jmvalin   QUOTE (bawjaws @ Dec 11 2013, 08:06) I th...   Dec 11 2013, 20:10
- - Steve Forte Rio   QUOTE (Kamedo2 @ Dec 8 2013, 08:42) QUOTE...   Dec 8 2013, 12:05
- - Bostedclog   Is there any improvement in sound quality from 1.1...   Dec 9 2013, 16:39
|- - jmvalin   QUOTE (Bostedclog @ Dec 9 2013, 10:39) Is...   Dec 9 2013, 17:48
|- - o-l-a-v   I wish the tagging of Opus could include using mor...   Dec 9 2013, 18:56
|- - Garf   QUOTE (o-l-a-v @ Dec 9 2013, 1...   Dec 9 2013, 19:27
|- - Seren   QUOTE (Garf @ Dec 10 2013, 02:27) QUOTE (...   Dec 10 2013, 04:49
- - saratoga   I think you can already put any image you want in ...   Dec 9 2013, 21:04
- - kjoonlee   Is there any chance we'll see updated builds o...   Dec 18 2013, 05:01
|- - eahm   QUOTE (kjoonlee @ Dec 17 2013, 21:01) And...   Dec 18 2013, 05:36
- - darkbyte   I've decided to encode my collection into Opus...   Jan 4 2014, 01:29
- - darkbyte   I was experimenting more today with Opus and found...   Mar 16 2014, 23:30
- - IgorC   Yes, the samples which contain transients should ...   Jun 19 2014, 15:52
|- - darkbyte   QUOTE (IgorC @ Jun 19 2014, 16:52) Though...   Jun 19 2014, 16:22
- - IgorC   darkbyte, I'll try higher bitrate tommorow ...   Jun 19 2014, 19:13
|- - darkbyte   QUOTE (IgorC @ Jun 19 2014, 20:13) I...   Jun 19 2014, 20:31
- - IgorC   After some additional tests on Velvet sample I can...   Jun 21 2014, 03:45


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