Re: tee-like function via virtual_oss
- Reply: Hans Petter Selasky : "Re: tee-like function via virtual_oss"
- In reply to: Hans Petter Selasky : "Re: tee-like function via virtual_oss"
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Date: Sun, 03 Oct 2021 21:33:20 UTC
Hi, thank you. It does not seems to work. I get all null samples when recording. Maybe it's a matter of gain? How do I control gain with virtual_oss? BR, El dom, 3 oct 2021 a las 21:24, Hans Petter Selasky (<email@example.com>) escribió: > On 10/3/21 9:18 PM, Hans Petter Selasky wrote: > > On 10/3/21 5:47 PM, J P wrote: > >> Hi, > >> I need to record what is being played back from a play-only device: > >> pcm0: <ATI R6xx (HDMI)> (play) default > >> > >> I thought that virtual_oss might come at hand for this and function in a > >> "tee-like" fashion but I am unable to have it work. > >> > >> My config is as follows: > >> -T /dev/sndstat -C 2 -c 2 -r 48000 -b 24 -s 8.0ms -f /dev/null -d dsp5 > -M > >> x,0,5,0,0,0 > >> > >> What am I doing wrong? > >> > >> It seems that this configuration connects the input of dsp5 to the > output > >> of dsp0, but I actually need the other way around. > >> > >> Thank you. > > > > Hi, > > > > Try this: > > > > virtual_oss -T /dev/sndstat -C 2 -c 2 -r 48000 -b 24 -s 8.0ms -R > > /dev/null -P /dev/dsp0 -d dsp9 -M x,0,0,0,0,0 -M x,1,1,0,0,0 > > > > You need two monitor filters, one for each channel. > > > > --HPS > > > > Hi, > > Maybe you want to add the -S option too, to support re-sampling. > > Anyway, if you want the default audio device to behave like this, that > what you play back can instantly be recorded, then replace "-d dsp9" > with just "-d dsp". > > --HPS >