2017-08-04, 15:06
(2017-08-04, 14:25)GreySkies Wrote: Or, it could be that your settings have been set to 2.0, in which case you'd just need to go into your settings to tell the Pi3 to output 5.1.
No, this is wrong.
Optical only supports 2 channels. You *must* set number of channels to 5.1 to use optical/toslink.
It can carry compressed multichannel audio that uses two channels for transport (AC3 and DTS).
Make sure you have AC3 and DTS passthrough enabled.
Also enable "dolby digital (AC3) transcoding" to allow other multichannel formats to be transported as AC3.
