Multiroom audio

[sam_nazarko]

Are you an audiophile?
It’s theoretically possible, and I’m sure there are add-ons that can do this already.

Multi-Room Music Sync

The problem is the clocks in the separate Pi’s (or any audio playback devices) are not synchronised. Clock accuracy (from the crystal oscillator) means they may drift by about half a second every hour. If you are standing in the doorway between two rooms playing the same file that audio offset will be very disconcerting. Devices like sonos have a PLL adjustment on their clocks to force the devices to be synchronised to <1ms to allow multi-room audio to work well. They are expensive though. T…

I’m assuming we’re talking about keeping the audio in sync across rooms.