Stereo channels: this example uses the first four channels of the multi-channel soundcard to create two virtual stereo output pairs:
At the bottom of the configuration file add and adjust one of the examples below. Now open the configuration file of PulseAudio, usually located at /etc/pulse/default.pa, as the root user. Step 2: create virtual outputs in PulseAudio The device name should look something like this: alsa_b-BEHRINGER_X-USB_xxyyxxyy-00.multichannel-output. Open a terminal window and run pacmd list-sinks. The following sources were used to create this guide:įirst you need to get the device name of your X-USB soundcard.
ALSA picks up the soundcard and PulseAudio then uses the full soundcard through ALSA to create virtual channels. Also note that on Ubuntu 18.04, PulseAudio runs on top of ALSA. And automatically recognized as a multi-channel soundcard by the operating system. It is assumed that the X-USB is installed and connected to a computer. The guide may also work for other versions or distro's of Linux with PulseAudio. It is directed towards splitting the X-USB channels up in virtual outputs on Ubuntu 18.04 with PulseAudio.
This guide is written for all owners of a Behringer X32 or Midas M32 with a X-USB 32x32 channel expansion card.
