ProtoDAC TDA1387 X8 project

[hifinet]

So I've been using my Protodac with moode for quite some time, and its excellent! I had enough parts to build another, with some different caps and an rpi Zero 2 W, so I figured I would do that and us raspotify for a garage/outdoor player (I know I know, no lossless from spotify).

My question, is does anyone know how to invert polarity there? I don't want to do it at my speakers because I use different sources sometime, so it would be best to do it on the pi, like done with Moode and CamillaDSP.

I think I should be able to do it with ALSA, but I have no idea where to start, and googling made me even more confused!

For a garage/outdoor player, I doubt that you can hear the difference with inverted polarity. 

Raspotify says "If you’re looking for a turnkey audio solution for Raspberry Pi’s with Spotify Connect support we recommend moOde™ audio player."