Re: Accoustic echo cancelation

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Oh, ALSA dev. I don't have much of any experience with this, but it is a frequent topic on the list. You might want to browse through the archives. I note the following in the log:

On 4/12/2016 9:56 AM, Alexandre Gonçalves wrote:
13:53:51.963 alsa_dev.c !ca_thread_func(2733): Set thread priority for audio capture thread. 13:53:51.965 alsa_dev.c Unable to increase thread priority, root access needed.

If the audio thread priority isn't high enough, you could get underruns which would cause the speex warnings you see.

Bill


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