Re: [codec] Listening tests at Google
Jonathan Rosenberg <jdrosen@jdrosen.net> Sun, 21 August 2011 23:46 UTC
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Date: Sun, 21 Aug 2011 19:47:28 -0400
From: Jonathan Rosenberg <jdrosen@jdrosen.net>
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Subject: Re: [codec] Listening tests at Google
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Excellent! Thank you Jan. Please post results when you have them. Thanks, Jonathan R. On 8/19/2011 6:28 PM, Jan Skoglund wrote: > Hey, > > We've prepared some listening tests for Opus on Mandarin speech and > transcoding (English) speech at Google. We started the tests today and > will have results at the end of August. The tests are split in four > MUSHRA groups: > > Test 1a - Mandarin NB > -------------------------- > Opus NB > Speex NB > iLBC NB > Reference and 2 anchors (LP 3.5 kHz and MNRU of 15 dB) > > Test 1b - Mandarin "HD Voice" (WB, FB) > -------------------------------------------------------- > Opus FB > G.719 FB > Opus WB > Speex WB > G.722.1 WB > Reference and 2 anchors (LP 3.5 kHz and LP 7 kHz) > > Test 2a - Transcoding NB > ------------------------------- > G.711 -> Opus NB > G.711 -> AMR-NB > Opus NB -> G.711 -> AMR-NB > AMR-NB -> G.711 -> Opus NB > AMR-NB -> G.711 -> AMR-NB > Reference and 2 anchors (LP 3.5 kHz and MNRU of 15 dB) > > Test 2b - Transcoding WB > -------------------------------- > Opus WB > AMR-WB > Opus WB -> AMR-WB > AMR-WB -> Opus WB > Reference and 2 anchors (LP 3.5 kHz and LP 7 kHz) > > > Cheers, > Jan > _______________________________________________ > codec mailing list > codec@ietf.org > https://www.ietf.org/mailman/listinfo/codec -- Jonathan D. Rosenberg, Ph.D. SkypeID: jdrosen Skype Chief Technology Strategist jdrosen@skype.net http://www.skype.com jdrosen@jdrosen.net http://www.jdrosen.net
- [codec] Listening tests at Google Jan Skoglund
- Re: [codec] Listening tests at Google Jonathan Rosenberg
- Re: [codec] Listening tests at Google Jan Skoglund
- Re: [codec] Listening tests at Google Jean-Marc Valin
- Re: [codec] Listening tests at Google Paul Beaumont
- Re: [codec] Listening tests at Google Jan Skoglund
- Re: [codec] Listening tests at Google Butrus Damaskus
- Re: [codec] Listening tests at Google Jan Skoglund
- Re: [codec] Listening tests at Google Butrus Damaskus