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Thread: Add Audio Outputs to PulseAudio

  1. #1
    Join Date
    Jan 2014

    Add Audio Outputs to PulseAudio

    I recently installed Lubuntu on a Zotac Zbox CI325-Nano machine, and I have been unable to use most of the audio outputs with PulseAudio. The 1/8" line out jack works fine, but none of the other outputs work with pulseaudio (HDMI, optical).

    I was able to find the HDMI hardware and play audio through it using the aplay command, so I know that the hardware works:
    aplay -D plughw:0,8 /usr/share/sounds/alsa/Front_Right.wav
    However when I manually added the hardware to the /etc/pulse/ file, I could not get it output audio from the HDMI port. I restart pulseaudio several times and rebooted the computer several time with no luck. In fact, after I added the HMDI port to, there was a faint high-pitched hum coming from the HDMI.

    This is the line I added to /etc/pulse/
    load-module module-alsa-sink device=hw:0,8
    So my question is: how do I add additional audio hardware to pulseaudio so that I can use it as an audio output?

    Thank you.

  2. #2
    Join Date
    Jan 2018

    Re: Add Audio Outputs to PulseAudio

    I think we need a little bit more info about what you're trying to accomplish, other than sending audio out via HDMI. (I have lubuntu on a zbox as well; it's what I'm typing this on, actually)
    I suspect the device you're sending the audio to may be older and might have an HDMI interface that is video only. The "old" 720p LCD TV repurposed as a monitor I'm looking at right now is like that; I prefer to use headphones, so it's not a major imposition or issue.

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