How is PulseAudio used in multiple audio sources?

How is PulseAudio used in multiple audio sources?

PulseAudio allows for simultaneous output to multiple sources. In this example, some applications are configured to use HDMI while others are configured to use analog. Multiple applications are able to receive audio at the same time. (aplay is from the alsa-utils package.)

How does PulseAudio work on Mac and Linux?

PulseAudio is a sound server for Linux and Mac OS. It also works on Windows operating system. It works like a proxy. The sounds in your applications passes through PulseAudio. That way, you can use various techniques to manipulate these sounds before you can hear them. PulseAudio can combine sounds from multiple sources (called mixing).

How to monitor specific output in PulseAudio app?

Alternatively, you can use pavucontrol to do this: make sure you have set up the display to “All input devices”, then select “Monitor of [your sound card]” as the recording source. Monitor specific output. It is possible to monitor a specific output, for example to stream audio from a music player into a VOIP application.

How to use PulseAudio as a volume control?

You will then need to open System Settings / Sound and choose GStreamer as the default backend. Then, go to Settings / Multimedia System Selector / Audio, and select PulseAudio. Whichever desktop you use, open the PulseAudio Volume Control application: from a command line, run pavucontrol &.

How to fix PulseAudio no sound output on analog stereo?

I’ve disabled the Auto-Mute option in alsamixer. always post the output of amixer with a supplied -c option where the number after -c corresponds to your card’s index as given by aplay -l otherwise you will just get the pulse dummy pcm which is literally useless in debugging in most cases. Here you go with a lot of logs :

How to set default output sink in PulseAudio?

Set the default output sink 1 The numbering of sinks is not guaranteed to be persistent, so all sinks in the default.pa file should be identified by the name. 2 For quick identification at runtime (e.g. 3 To avoid unnecessary overriding of 100% normal volume it is better to use alternative utilities for managing of sound.

Is there a way to add HDMI to pulse?

Unfortunately, load-module module-alsa-sink device=hw:0,3 did not work to add HDMI output to Pulse’s “Analog Stereo Duplex” configuration. Pulse would start, but no HDMI output.

How to enable both built in audio output and HDMI?

Choose “Analog Stereo Duplex” as your pavucontrol configuration, and add to default.pa : Works like a charm. I keep my microphone input, and on pavucontrol/Output Devices I have all options for analog output and for HDMI. Thanks for contributing an answer to Unix & Linux Stack Exchange!

What does sink and source mean in PulseAudio?

At first I thought SINK meant OUTPUT and SOURCE meant INPUT, but it seems that this is not the case. Could someone explain what SINK and SOURCE mean in simple English? PulseAudio clients can send audio to “sinks” and receive audio from “sources”. So sinks are outputs (audio goes there), sources are inputs (audio comes from there).

How does module-udev-detect work in PulseAudio?

Let module-udev-detect look for the supported cards and then select the profile you want, that will make the right sinks show up. In addition to the general device driver options described above this module supports: The ALSA device to use. (defaults to “default”) The desired fragments when opening the device. (defaults to 12)

What does the first line of PulseAudio do?

The first line instructs PulseAudio (one of the many ways that your system talks with the underlying sound hardware) to load a module called loopback, which unsurprisingly, loops incoming audio back through your outputs. This means that you can hear everything that comes into your line-in port in real time.

How to load a PulseAudio module in Linux?

pactl load-module module-loopback sudo sh -c ‘ echo “load-module module-loopback” >> /etc/pulse/default.pa ‘ The first line instructs PulseAudio (one of the many ways that your system talks with the underlying sound hardware) to load a module called loopback, which unsurprisingly, loops incoming audio back through your outputs.

How is PulseAudio monitoring your line-in interface?

PulseAudio: Monitoring your Line-In Interface July 11, 2010Jon FGod Damnit Linux, Hardware, Jon F, Linux, Tutorial36 At home, my setup consists of three machines –  a laptop, a PC, and an XBOX 360.