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...difference (ITD) granularity/resolution in microseconds? ?- assuming two channels. ) ? 2/ Narrowband: I see AMR-NB.? How does Opus compare with modern speach coding and band excitation models? I.e. http://www.opus-codec.org/comparison/ : http://www.opus-codec.org/comparison/quality.png ? http://www.dvsinc.com/papers/iambe.htm -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/opus/attachments/20120911/98af8816/attachment.htm

...processing so by now I don't >> remember which algorithm they used. IIRC, not CELP. > >4.4 kbps is almost certainly some variant of CELP. No, not CELP. I googled around a bit and found the site of the company that made our speech coder. They are still in the business: http://www.dvsinc.com Seems like they call it MultiBand Excitation (MBE). >Plus 16k 24-bit words is already 48 kB and I'm sure Speex can fit into smaller than that. First, I am not sure that board had full 16K words. I said 16K because that's the maximal size allowed by ADSP-2111 architecture. Second,...

Hi, We would like to announce the first release of the Speex project. Speex (http://speex.sourceforge.net) is an open-source (LGPL), patent-free compression format allowing an alternative to expensive proprietary codecs. Unlike Ogg Vorbis which compresses general audio, Speex is designed especially for speech. For that reason, Speex is meant to be a complement to Vorbis. Since it is specialized