pulseaudio Questions

4

I'm running a Centos 7 desktop with gnome, although similar issues regularly come up with Arch and other distros. When I checked my cpu usage via top, pulseaudio was using nearly 20% cpu. I hunted ...
Fenske asked 20/2, 2021 at 9:57

4

Solved

How do you listen to changes in volume on the Master channel on the default sound card? I'd like to be notified through dbus or a callback or something that the volume has changed. I have tried lo...
Cointon asked 22/1, 2016 at 0:10

2

I've setup a systemd service file to perform some pactl operations at system startup for a test process. While the commands work fine when performed from a terminal I always get "pa_context_connect...
Proselytism asked 10/2, 2014 at 21:18

2

While screen-recording using the below ffmpeg options I consistently get audio ahead of video, delay is in the order of few seconds ffmpeg cmd: ffmpeg -y -f x11grab -thread_queue_size 1024 -draw_mo...
Lordly asked 19/12, 2018 at 7:50

1

I have a laptop running Ubuntu 18.04 and i3wm connected via Thunderbolt to a dock and a webcam. I want that the default pulse audio sink is set to the laptops internal sound card. Thus I have se...
Haeckel asked 17/1, 2020 at 11:19

2

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I'm trying to set up a Docker container with Selenium that takes a recording of the browser with system audio using ffmpeg. I've got video working using Xvfb. Unfortunately, on the audio side, it s...
Florin asked 23/9, 2020 at 23:25

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This question is inspired by Can you run GUI apps in a docker container?. The basic idea is to run apps with audio and ui (vlc, firefox, skype, ...) I was searching for docker containers using pu...
Scandium asked 11/3, 2015 at 11:41

3

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My overall aim is to restart pulseaudio for a specific user via ansible (so if you have a better idea how to do this, I am open to hear it :) ) I want to run the following command as the user myus...
Lemcke asked 22/6, 2019 at 14:23

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So the question is, How can I set the default source? How can I list the current default source? Details I have 4 sound input sources on my linux device. Here is the result of pactl list sourc...
Debra asked 3/12, 2019 at 4:26

4

The output of both pactl list sink-inputs and pacmd list-sink-inputs contains a Properties section: Properties: media.name = "ALSA Playback" application.name = "ALSA plug-in [snapclient]" nativ...
Sidwell asked 28/9, 2016 at 1:19

0

I'm trying to build a simple server that basically: opens a webpage with a puppeteer instance. records the webpage and save the video file. I was able to implement this with puppeteer-stream and ...
Isopiestic asked 17/4, 2021 at 19:9

2

As much as it matters my scenario is developing an accessibility application not any kind of malicious eavesdropping, whereas also within this scenario there are various research and development im...
Sphingosine asked 22/8, 2020 at 22:53

1

I want pulseaudio (remote instance) to push audio sent to the primary alsa device straight to RTP over the internet so that I could listen to it on VLC on my home computer. in my /etc/pulse/defaul...
Anxiety asked 22/1, 2013 at 6:18

2

I'm trying to play a WAV audio file with Qt (QSound, QSoundeffect) on an ARM based Atmel board (sama5d31ek). I've build the rootfs (and Qt SDK for cross-compiling) with Yocto/poky. When playing wi...
Bunny asked 16/4, 2016 at 5:58

2

Cannot start android emulator on AWS linux .. Getting this exception : "android-sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64: error while loading shared libraries: libpulse.so.0: cannot op...

3

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I have a ubuntu install with pulseaudio default installed. When pulseaudio is running this works: aplay -D hw:2,7 /usr/share/xbmc/sounds/Bursting\ Bubbles/nav.wav But when no pulseaudio daemon is ...
Resurrection asked 24/8, 2011 at 22:40

3

I have Ubuntu 16.04 and already installed BlueZ 5.37, PulseAudio 10.0, and ofono 1.20 (clone from github). And I need to use phone like modem for transmitting my phone calls to computer. I ...
Hen asked 3/8, 2017 at 13:17

2

I know it's possible by using pulse audio on a Linux host system But paprefs is built for linux not mac.
Brockwell asked 19/10, 2016 at 16:10

1

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I'm working on a mobile app for Maemo/MeeGo and Maemo uses PulseAudio. I want to play a mp3 to caller (and cancel the mic when doing it, and not to listen caller, everything should be done on backg...
Playroom asked 17/1, 2011 at 23:45

3

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This doesn't seem to work at all: cat /dev/urandom > /dev/dsp #from wikipedia.org Is it because of pulseaudio? or I need to do some settings?
Chirp asked 24/6, 2011 at 9:1

2

Ok, so I installed pyaudio from the package python-pyaudio using apt-get , now when I Import and Invoke as follows: Python 2.7.3 (default, Sep 26 2012, 21:53:58) [GCC 4.7.2] on linux2 Type "help"...
Burgess asked 3/3, 2013 at 4:2

1

I am using my gentoo as host os for kvm with vga passthrough for playing on windows, but I have problem with sound, it is not good quality, I hear something like crackles in sound. I am using pulse...
Gualterio asked 24/8, 2015 at 22:59

2

I'm trying to get a D-Bus signal handler to be called whenever the state of a sink changes in PulseAudio (e.g. becomes inactive). Unfortunately, it isn't being called and I frankly am not sure why....
Pinkiepinkish asked 21/10, 2015 at 4:17

1

A clear explanation seems to be missing in the PulseAudio documentation, and I cannot find any simple examples.
Checklist asked 30/4, 2015 at 20:58

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Good day, I have been debating some details with a colleague about ALSA vs PulseAudio, and need some help coming to a conclusion with it. It's to my understanding that ALSA is relatively low-level...
Squama asked 25/3, 2015 at 0:42

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