Hello,
As per discussion, I know that ALSA driver does not have support for simultaneous playback and recording.
We are using AD1981B codec, so our hardware has a support for simultaneous playback and recording of an audio.
So what exactly I have to do to get a support for simultaneous playback and recording? Shall I have to use sound server demons?
Is it really possible to do simultaneous playback and recording in linux?
Thanks & Regards, Prashant C.
--- On Wed, 19/8/09, Takashi Iwai tiwai@suse.de wrote:
From: Takashi Iwai tiwai@suse.de Subject: Re: [alsa-devel] unable to do simultaneous playback and recording To: "prashant chopade" prashantchopade@yahoo.com Cc: alsa-devel@alsa-project.org Date: Wednesday, 19 August, 2009, 5:50 PM
At Tue, 18 Aug 2009 05:05:10 -0700 (PDT), prashant chopade wrote:
Hello,
We using linux-2.6.27 on target board-AT91SAM9263EK. We are using ALSA library utilities (aplay & arecord). But by using these utilities we can’t do simultaneous playback and recording.
We performed following activity to come to this conclusion:
//At the background we were recording
#arecord –f cd record_test_file &
//At the forefront we were playing pre-recorded audio file
#aplay –f cd pre_recorded_file
Our observation is that, recording stops when start playing file.
In the API side, the above should work fine. It must be the driver that doesn't work with full-duplex.
Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
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