Hi, On 06 Apr 2009, at 22:02, Benny Prijono wrote: > On Mon, Apr 6, 2009 at 5:23 PM, Ruud Klaver <ruud at ag-projects.com> > wrote: > > It seems that the echo canceller is started before Portaudio is done > sometimes. According to the wiki page about the new audio device > API, I've done the following to setup the audio device with > (software) EC directly: > > param.flags = PJMEDIA_AUD_DEV_CAP_EC | > PJMEDIA_AUD_DEV_CAP_EC_TAIL > param.ec_enabled = 1 > > If I omit this and do pjmedia_snd_port_set_ec() later instead, the > echo cancellation is enabled at that point. > > Just as an update, doing this doesn't actually seem to help at all... > > > Bear with me (as always!), as this belongs to those difficult > question to answer type of question. :) > > -benny Some more new sound device API related issues, this time in linux (previous issues were on mac): Previously while using ALSA, the "default" device was selected for both recording device and playback device when passing -1 as id. Now when passing PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV and PJMEDIA_AUD_DEFAULT_CAPTURE_DEV respectively, some other ALSA device gets selected. It results in these errors in the log: 2009-04-07 16:12:31.344000 (5) pa_dev.c: PA message: Expression 'SetApproximateSampleRate( pcm, hwParams, sr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1291 2009-04-07 16:12:31.344000 (5) pa_dev.c: PA message: Expression 'PaAlsaStreamComponent_InitialConfigure( &self->playback, outParams, self->primeBuffers, hwParamsPlayback, &realSr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1865 2009-04-07 16:12:31.344000 (5) pa_dev.c: PA message: Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/../../../portaudio/src/hostapi/ alsa/pa_linux_alsa.c', line: 1986 2009-04-07 16:12:31.352000 (5) pa_dev.c: PA message: Expression 'SetApproximateSampleRate( pcm, hwParams, sr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1291 2009-04-07 16:12:31.352000 (5) pa_dev.c: PA message: Expression 'PaAlsaStreamComponent_InitialConfigure( &self->playback, outParams, self->primeBuffers, hwParamsPlayback, &realSr )' failed in 'src/../../../portaudio/src/hostapi/alsa/pa_linux_alsa.c', line: 1865 2009-04-07 16:12:31.352000 (5) pa_dev.c: PA message: Expression 'PaAlsaStream_Configure( stream, inputParameters, outputParameters, sampleRate, framesPerBuffer, &inputLatency, &outputLatency, &hostBufferSizeMode )' failed in 'src/../../../portaudio/src/hostapi/ alsa/pa_linux_alsa.c', line: 1986 And it fails with "Invalid sample rate". This also happens on the old API when I select another device than "default". Note that I am only trying 32 kHz as sample rate. When I force the use of the "default" audio device, it sits for about 10 seconds eating 100% CPU before finally starting. OSS (or at least ALSA OSS emulation) seems to work fine still. Good luck! ;) Ruud Klaver AG Projects
