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Topic: ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe (Read 1063 times) previous topic - next topic
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ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe

Hi, I hope you are doing well. Back in 2020 I research to make a .asoundrc file witch setup my ALSA to loopback the PC playback to the microphone so I could share on calls the audio of videos or games executing outside the browser. I know everything could be easier using pulse, jack or pipewire but not my goal. I kinda like how alsa manages the audio but their docs and logs are confusing.
With a lot of web research I could understand how it works and I wrote that file, it worked just fine.
Now days I'm not sure what changed but it doesn't work any more. I have tried again to do research and read the docs again but I'm stuck and is still weird that the same file doesn't work.

I can use the devin, devout, loopin, and loopout pcm's without any trouble. Even I can playback on the routeout and record from the loopin  but every time I try the routein or the multin I got:
Code: [Select]
arecord: xrun:1687: status error: Broken pipe

I don't understand what I'm doing wrong

Re: ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe

Reply #1 –
I only use alsa on different PCs and I'm not a great sound specialist.

On the other hand, I have a good mixer called qastools:
https://gitlab.com/sebholt/qastools

And on this mixer, I can activate "Loopback Mixing".

Re: ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe

Reply #2 –
It looks interesting I'll take a look.
Btw I found some work around still I can't say this is fixed. From the alsamixer interface I can choose three microphone inputs: Line, Front Mic and Rear Mic. This error occurs when Line input is selected but works just fine if Front Mic is selected. I don't know why this behavior. I hope one day I can figure it out.

Re: ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe

Reply #3 –
xrun seems to be a buffer.

Have you tried using an older kernel? That is if you keep your kernel up to date?
Because much of alsa is in the kernel.
 

Re: ALSA PCM type route/multi arecord: xrun:1687: status error: Broken pipe

Reply #5 –
I'm wondering if something like sndio (there's an aucatctl easier user interface as well, not part of sndio) would be easier on such setup, which doesn't take over sound.  I haven't actually explore it, but it looks more like what other solutions should have been, :) and perhaps easier for the sort of mixing at hand.  I haven't ever gone beyond a single user on a single PC either without more complexity than having an usb extra sound device...