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11

Analog and digital audio output at the same time

rated 0 times [ 11] [ 0] / answers: 1 / hits: 18126 / 3 Years ago, sun, july 11, 2021, 5:39:19

My speakers use a digital input, but my headphones use an analog input. I have them both plugged in, and when I want to use the headphones I just turn off the speakers and switch on the headphones. I know that simultaneous output on digital and analog is supported by the hardware, because it worked fine in Windows XP. But on Ubuntu, I seem to only get one at a time, depending on which setting is selected in the combo box located at System -> Preferences -> Sound -> Hardware.

How can I get simultaneous analog and digital output without having to switch the profile every time? I'm on Ubuntu 11.04 and it's an HDA Intel chip.

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landarre

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1 Year ago

answered 3 Years ago rstride · Accepted Answer

We have the optional application paprefs that allows to install a virtual output device to pulseaudio. This enables simultaneous output to all attached sound cards/devices:

paprefs

The additionally created audio output device for simultaneous output may be selected in the "Output" tab from pulseaudio sound preferences menu:

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From the command line we can also load the device for simultaneous output without having to run paprefs by

pacmd load-module module-combine-sink

# pacmd load-module module-combine # for PulseAudio < 1.0

Put this line (without pacmd) in your /etc/pulse/default.pa to load this device at startup.