On Mon, Feb 15, 2021 at 09:55:28AM -0800, Rich Shepard wrote: > On Sun, 14 Feb 2021, Rich Shepard wrote: > > > Aha! I found the problem, at least with audacity. Audacity has a drop down > > combobox with output options. The default is, "HD-Audio Generic: ALC1220 > > digital (HW:1,1)" and there's no speaker output. And, when I change the > > output to "HD-Audio Generic: ALC1220 digital (HW:1,0)" the same test > > recoding is heard from the speakers. > > Sean, et al.: > > Now I've resolved the issue with direct recording and playback using pacat. > Two things changed since when I logged out yesterday: 1) I had downgraded > pavucontrol from version 4.0 (which is in Slackware-current) to version 3.0 > (which is the default in Slackware-14.2) and 2) I logged off the desktop and > logged back in this morning. > > I created a recording: > $ pacat -v -r --file-format=wav direct-pacat-recording.wav > Opening a recording stream with sample specification 's16le 2ch 44100Hz' and channel map 'front-left,front-right'. > Connection established. > Stream successfully created. > Buffer metrics: maxlength=4194304, fragsize=352800 > Using sample spec 's16le 2ch 44100Hz', channel map 'front-left,front-right'. > Connected to device alsa_input.usb-Focusrite_Scarlett_Solo_USB_Y7R5BX40493137-00.analog-stereo (index: 25, suspended: no). > > and played it back to the external speakers: > $ pacat -v -p --file-format=wav direct-pacat-recording.wav > Opening a playback stream with sample specification 's16le 2ch 44100Hz' and channel map 'front-left,front-right'. > Connection established. > Stream successfully created. > Buffer metrics: maxlength=4194304, tlength=352800, prebuf=349276, minreq=3528 > Using sample spec 's16le 2ch 44100Hz', channel map 'front-left,front-right'. > Connected to device alsa_output.pci-0000_0a_00.3.analog-stereo (index: 20, suspended: no). > Stream started. > Stream underrun. > Playback stream drained.y: 100160 usec. Draining connection to server. > (when I stopped it) > > So there must be something (perhaps in pulseaudio or alsa) that's different > in the soon-to-be Slackware-15.0 that is not supported in Slackware-14.2. > But, since I first faced this problem with the default pavucontrol-3.0 I > honestly don't know why it stopped working then started again. For the record, I would be very surprised if your version of pavucontrol had anything to do with these issues. In your other email, you show this output from your pacat record attempt: > $ pacat -v -r --file-format=wav /tmp/sounds.wav > Opening a recording stream with sample specification 's16le 2ch 44100Hz' and channel map 'front-left,front-right'. > Connection established. > Stream successfully created. > Buffer metrics: maxlength=4194304, fragsize=352800 > Using sample spec 's16le 2ch 44100Hz', channel map 'front-left,front-right'. > Connected to device alsa_output.pci-0000_0a_00.3.analog-stereo.monitor (index: 0, suspended: no). Notice the last line, where it reports the source it has attached to is the alsa output monitor source. This was recording the _output_ of your built-in sound card, hence why you heard nothing upon playback. Pacat / parec will respect the fallback selection as the default recording source if you don't supply one explicitly, so that will most likely be what made the difference between your tests. --Sean _______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
