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What:
I want to display a Twitch video stream locally (on the rPi, over HDMI) but send the audio to a desktop on the same network.

Why:
To free up video resources for other things (gaming, bitcoin mining).

Why not use the hardware headphone jack:
Ridiculous amounts of noise produced by the pi's headphone jack proximity to the switched-mode power supply.

Why not use audio over HDMI:
My monitor has no audio output, and I have no adapters to break it out (never seen the need, although this case is one).

Why not use USB audio:
USB Audio support for the Pi generally has a history of being shoddy. I would be open to this option if I could find (or be told of) a good guide to setting it up.

How:
So I've been fiddling about with various solutions to this problem, but everything I've read about or tried turns out to be limited to performing the reverse purpose (sending audio from a PC to an SBC), or is restricted to Apple devices (AirPlay).

So far I've looked at SqueezeBox on OSMC and Signalyst on DietPi... Both aren't really designed for this use case. So far I prefer DietPi as far as an OS goes, but I'm open to trying anything.

Possible solutions that don't apply to me:

  • PulseAudio seems like it has a decent solution for networked audio but PulseAudio isn't supported on Windows, meaning I'd have to run a VM just to receive audio which kind of defeats the purpose of freeing up resources.

  • This example from this question suggesting streaming audio over SSH. If Windows had a good SSH server this would be viable.

Thank you for any input you can provide!

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  • What is the actual question here? Could you try to reduce it to minimal information that still describes your specific problem? As it is now there seems to be a lot of unnecessary information and yet not enough detail on what you've done.
    – Brick
    Commented Dec 8, 2017 at 18:51
  • Have you tried a simple (and inexpensive) in-line HDMI audio extractor? They are less than $15 on places like Amazon. Try googling "Wiistar Extractor Optical Splitter Converter" to see what I mean.
    – MrChips
    Commented Dec 8, 2017 at 18:55
  • @MrChips I have, but couldn't find any that do HDMI-HDMI. I already have an HDMI splitter though so the destination video type doesn't matter. This might be the easiest route... thanks for the lingo.
    – dowodenum
    Commented Dec 8, 2017 at 18:56
  • @Brick So you want me to intentionally be vague so you don't have to read as much? I went into detail so that I wouldn't have people responding suggesting things I've already tried or that won't work for this problem.
    – dowodenum
    Commented Dec 8, 2017 at 18:57
  • I want you to be concise so that we can figure out where your problem is.
    – Brick
    Commented Dec 8, 2017 at 19:00

1 Answer 1

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tl;dr just do it in hardware with a splitter or an extractor. Thanks Brick for your attempt at reading.

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