AudioInputUSB is missing - but there's an example "PassTroughUSB"
@Paul, do you want to add output_PT8211, or is it too late ?
oops.. no, of course notI just tried here. It compiles. A couple warnings, but compiles ok.
Did you set Tools > USB Type to Audio?
Definitely too late for 1.29.
But I have been putting some thought into this. Rather than grow the number of objects for many similar formats, perhaps the AudioOutputI2S constructor ought to have an optional parameter for other formats, like right & left justified.
still serial-problems with osx el capitan.