Can I disable PulseAudio?

You can disable PulseAudio for the current user or all users on a machine. Note: PulseAudio restarts automatically when you restart you machine, but you can prevent this by navigating to System > Preferences > Startup Applications and disabling the PulseAudio Sound System.

Does audio need pulse?

You don’t. It’s a piece of middleware that for most users is completely unnecessary. Most applications that need audio can use ALSA directly just fine.

How do I reset my PulseAudio?

Run pulseaudio -k to kill the running daemon. You will get an error only if no daemon was running, otherwise no messages will appear. Ubuntu will attempt to restart the daemon automatically assuming there are no problems with the configuration. You can run pulseaudio –check to check that Pulseaudio is running.

How do I run Pavucontrol?

Open up Pavucontrol, and click the “Recording” tab. In the recording area, you’ll see every program currently recording sound through the Pulse sound system. To lower the input volume for an app, drag the slider to the left. To increase volume drag the slider to the right.

What is PulseAudio and ALSA?

As far as I know, ALSA is a package of many sound card drivers, and PulseAudio is a audio application that operate the sound data like mixing or equalizer.

Does Ubuntu use PulseAudio?

Ubuntu uses both ALSA, and Pulseaudio for controlling sound input and output.

How do I know if PulseAudio is working?

Check the log output of PulseAudio, either in syslog, or following the instructions on https://wiki.ubuntu.com/PulseAudio/Log….Open up the sound settings window from the sound indicator and check both the output and input pages.

1. All audio output should be tested.
2. All audio input should be tested.

Why is PulseAudio using so much CPU?

The key insight here is that pulse’s job is to route, mix and resample audio from apps to the correct device. Different apps/devices may have different samplerates (e.g.: 44.1khz to 48khz) so pulse is resampling which will typically require a lot of cpu resources.

What is Pactl command?

Description. pactl can be used to issue control commands to the PulseAudio sound server. pactl only exposes a subset of the available operations. For the full set use the pacmd(1).

Do I need ALSA if I have PulseAudio?

PulseAudio is a software mixer, on top of the userland (like you’d run an app). When it runs, it uses Alsa – without dmix – and manages every kind of mixing, the devices, network devices, everything by itself. In 2014, you can still run only ALSA.