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From: Sorin C. <sor...@gm...> - 2011-01-12 09:03:49
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Dear all, Yesterday I have modified a small VoIP application which previously used speex to use codec2 and tested it using the loopback interface. As it was mentioned voice sounds robotic but is perfectly intelligible. CPU usage is about 6% on a T7300 laptop. I have also emulated (using tc netem) up to 30% packet losses or packet corruption; it seems to work but I cannot quantify the quality. Today I will try to play with speex preprocessing to add VAD and DTX. In the next few days I will test it in the MAN (4 hops) using the same laptop and an eeepc901. Best regards, Sorin |