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[GaryB]

I am building an amplified speaker using a Pi4 and an Stereo IQ audio HAT.
What I'd like to do is to be able to switch the Audio between Mono & Stereo in JRiver and and also change the EQ ( roll off some of the bass when in Mono). Physically this would be done by using a switch on the Back of the Main speaker which then allow a second speaker to be fed by the Right hand channel or Dual Mono.

[mattkhan]

The requirement to flip between mono and stereo probably means you have to create 2 zones (one for mono, one for stereo) and then write something (e.g. in python) which makes the following MCWS calls in response to the relevant gpio pin state change

- get the current playlist (MCWS/v1/Playback/Playlist)
- stop playback (MCWS/v1/Playback/Stop)
- change active zone (MCWS/v1/Playback/SetZone)
- set the playlist (MCWS/v1/Playback/SetPlaylist)
- start playback (MCWS/v1/Playback/Play)