Max2Play Home 2016 (en) › Forums › General Questions on Hardware and Max2Play Versions › Use just one pair of speakers (or 2.1) for both TV and music output in lounge. › Reply To: Use just one pair of speakers (or 2.1) for both TV and music output in lounge.
All good, that is a perfectly understandable setup and should also be feasible in one way or another.
In my opinion, you have two options:
Send the analogue signal from the TV to the Squeezebox server and output it through the speakers or run Kodi directly on the Pi and use the speakers as audio output. My recommendation would be the latter.
With the first option, you have two problems: You need an extra sound card (or maybe even a whole system) that has an analogue input. And you will have to deal with latency problems. One sound card you could use here is the HiFiBerry DAC+ ADC, as you have already mentioned. Using the WaveInput plugin, you could use the input signal as a source for the Squeezebox server.
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With the second option, you might have a problem with performance. Depending on how powerful your Pi is, it could go down the tubes when playing large files with Kodi. Nevertheless, I think this is the best method. In Kodi’s settings, you can simply select the sound card as the audio output and off you go.