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...dded DSP system with mic and speaker getting 1msec packets containing 8 samples. We can watch the DSP and ISDN clock frames drift and every few minutes we will drop or reuse a packet of samples. According to "Echo Cancellation Demystified" by Alexey Frunze http://www.spiritdsp.com/pdf/article_4.pdf (see section "Incorrect Codec Synchronization") dropping or reusing samples isn't a viable solution since it abruptly changes the echo path delay. If I am dropping/reusing far end (phone line/ISDN) samples before they go out the speaker and after the mic, I don't understand w...

...ic and speaker getting 1msec packets > containing 8 samples. We can watch the DSP and ISDN clock frames drift and > every few minutes we will drop or reuse a packet of samples. > > According to "Echo Cancellation Demystified" by Alexey Frunze > http://www.spiritdsp.com/pdf/article_4.pdf (see section "Incorrect Codec > Synchronization") dropping or reusing samples isn't a viable solution since > it abruptly changes the echo path delay. If I am dropping/reusing far end > (phone line/ISDN) samples before they go out the speaker and after the mic, > I do...

...ic and speaker getting 1msec packets > containing 8 samples. We can watch the DSP and ISDN clock frames drift and > every few minutes we will drop or reuse a packet of samples. > > According to "Echo Cancellation Demystified" by Alexey Frunze > http://www.spiritdsp.com/pdf/article_4.pdf (see section "Incorrect Codec > Synchronization") dropping or reusing samples isn't a viable solution since > it abruptly changes the echo path delay. If I am dropping/reusing far end > (phone line/ISDN) samples before they go out the speaker and after the mic, > I do...

Thanks Jean-Marc. Is there a Speex trunk for the C64xx I can use? Or do I have to figure what options to turn on (in configure) when building the library? Thanks. Regards, Andy Ngo ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: ndno72-speex@yahoo.com Cc: jtrantow@ieee.org; speex-dev@xiph.org Sent: Tuesday, December 5, 2006 2:52:02 PM Subject: