Tanks for your help. My I ask you for step by step commands in command line for ubuntu to achieve your solution in "change 1"? You would be a big help for me! Best, Andreas > Am 11.05.2021 um 14:00 schrieb pulseaudio-discuss-request@xxxxxxxxxxxxxxxxxxxxx: > > Send pulseaudio-discuss mailing list submissions to > pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss > or, via email, send a message with subject or body 'help' to > pulseaudio-discuss-request@xxxxxxxxxxxxxxxxxxxxx > > You can reach the person managing the list at > pulseaudio-discuss-owner@xxxxxxxxxxxxxxxxxxxxx > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of pulseaudio-discuss digest..." > > > Today's Topics: > > 1. Question about setup sink/source (andreas.unterhuber@xxxxxx) > 2. Re: Question about setup sink/source (guest271314) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 10 May 2021 15:20:22 +0200 > From: andreas.unterhuber@xxxxxx > To: pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx > Subject: Question about setup sink/source > Message-ID: <25E87E47-3B5F-48F3-9A33-8797DECA7497@xxxxxx> > Content-Type: text/plain; charset=us-ascii > > Dear pulseaudio community, > > I've a setup to run a screen grabber (ffmpeg records content of a website, loaded in chromium by selenium) within a docker container. Audio is recorded from ffmpeg by pulseaudio on a Ubuntu 18 system. > > ################# > My setup: > ################# > > ... start Xvfb, chrome+selenium ... > pulseaudio -D --exit-idle-time=-1 > pacmd load-module module-virtual-sink sink_name=v1 > pacmd set-default-sink v1 > pacmd set-default-source v1.monitor > ... and then ffmpeg -ar 44100 -f pulse -i default [...] out.mp4 ... > > Works perfectly. But I want a little more. I'm pretty sure that someone can help me! > > ################# > Needed change 1# > ################# > > I need an audio source that has always audio (audio "silence"). The browser does not always have audio-websites to playback. So I had in mind to create a source with continuous silence, mixed with browser audio (whenever the browser has audio signals to play). > How does the command/setup looks like? I played around but was unable to realize... > > ################# > Needed change 2# > ################# > > Instead of just continuous silence I want to playback an audio file that runs in a loop forever, mixed with the browser audio. > How does the command/setup looks like? > > > I'm very, very thankful for any help! > Best, Andreas > > > > ------------------------------ > > Message: 2 > Date: Mon, 10 May 2021 07:33:24 -0700 > From: guest271314 <guest271314@xxxxxxxxx> > To: General PulseAudio Discussion > <pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Question about setup sink/source > Message-ID: > <CA+syWAMAPZjNWz1FHJ5D5ZW8cwKJOT8R_i-J_VYwE22PFYqJnw@xxxxxxxxxxxxxx> > Content-Type: text/plain; charset="utf-8" > > Needed change 1# > > You should be able to capture and record default Monitor device. > > Alternatively you can use Web Audio API to create an OsciallatorNode with > frequency set to 0. > > Needed change 2# > > Chromium provides such a means using flags, e.g., > > chromium-browser --autoplay-policy=no-user-gesture-required > --use-fake-device-for-media-stream --use-fake-ui-for-media-stream > --use-file-for-fake-audio-capture=$HOME/localscripts/output.wav > --user-data-dir=$HOME/test > > > On Mon, May 10, 2021 at 6:26 AM <andreas.unterhuber@xxxxxx> wrote: > >> Dear pulseaudio community, >> >> I've a setup to run a screen grabber (ffmpeg records content of a website, >> loaded in chromium by selenium) within a docker container. Audio is >> recorded from ffmpeg by pulseaudio on a Ubuntu 18 system. >> >> ################# >> My setup: >> ################# >> >> ... start Xvfb, chrome+selenium ... >> pulseaudio -D --exit-idle-time=-1 >> pacmd load-module module-virtual-sink sink_name=v1 >> pacmd set-default-sink v1 >> pacmd set-default-source v1.monitor >> ... and then ffmpeg -ar 44100 -f pulse -i default [...] out.mp4 ... >> >> Works perfectly. But I want a little more. I'm pretty sure that someone >> can help me! >> >> ################# >> Needed change 1# >> ################# >> >> I need an audio source that has always audio (audio "silence"). The >> browser does not always have audio-websites to playback. So I had in mind >> to create a source with continuous silence, mixed with browser audio >> (whenever the browser has audio signals to play). >> How does the command/setup looks like? I played around but was unable to >> realize... >> >> ################# >> Needed change 2# >> ################# >> >> Instead of just continuous silence I want to playback an audio file that >> runs in a loop forever, mixed with the browser audio. >> How does the command/setup looks like? >> >> >> I'm very, very thankful for any help! >> Best, Andreas >> >> _______________________________________________ >> pulseaudio-discuss mailing list >> pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx >> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20210510/027cd15a/attachment-0001.htm> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > pulseaudio-discuss mailing list > pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss > > > ------------------------------ > > End of pulseaudio-discuss Digest, Vol 121, Issue 1 > ************************************************** _______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
