Re: ALSAPulseAudio procedure

Hi Barry,

I don't know too much about ALSA or PulseAudio, but I do know that the part of the wiki that you cited is for setting up an ALSA source that grabs whatever is playing through PulseAudio. It is *not* something that you can use for an audio sink, only an audio source, which I think is why that didn't work for you.

If anything, then, I'd say that the wiki entry is a bit misleading to frame that discussion as a "problem" and "solution". It's really just a how-to for creating an audio source for the sounds that the system is producing elsewhere.

The problem you're having with audio underruns is probably pretty common and likely would merit a wiki entry in the "problem" and "solution" style. Unfortunately, I don't have much help for you there since you're already avoiding PulseAudio and having ALSA talk to the sound card directly.

Cheers,
Ryan

On 7/1/20 8:43 AM, Barry Duggan wrote:
> Hi Cinaed,
>
> Thank you for your response. Yes, I have tried those and the "hw:CARD=Generic,DEV=0" works well for most flowgraphs. I obtained that from the 'aplay -L' command.
>
> Let me reiterate my request: In exploring the audio problems, I followed the instructions in https://wiki.gnuradio.org/index.php/ALSAPulseAudio#Monitoring_the_output_of_your_system and it gave the error I cited. So what I want to know is: Did I do something wrong, or is the procedure not correct?
>
> I need someone who is familiar with the ALSA and PulseAudio software to look at this.
>
> Thanks.