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...pesq problem, since im using P862, which - at least the documentation says so - supports only narrowband. As I said, this is my first time on a mailing list, and I'm not sure where I should answer now. Is this right? Thanks for your help again! Greetings, Olli 2013/1/9 Rasmussen, Lloyd <lras at loc.gov<mailto:lras at loc.gov>> What do your ears tell you about the performance of these codecs? If you play some of the test signals back at half-speed, can you hear some frequencies that were not in the original signal? Are all files running in mono? If you have time, you might w...

Hello, I just signed up to this mailing-list (note: my first mailing list at all), because I'm having some problems related to speex. Let me just introduce you to what I'm doing. I am writing a short (really short) paper about VoIP techniques, especially audio codecs for speech. I pointed out basic technologies behind audio codecs; vector quantization, lpc, long-term prediction and some

Using the Windows command-line encoder that is part of opus-tools-0.1.9, we encoded several talking book audio files for subjective listening tests. When this program is encoding speech audio at 24 or 32 kbps constant bit rate from files that have a 44.1 KHz sampling rate, which bandwidth (SWB or FB) would the encoder default to? This codec is quite impressive. The only signal that gives it some