Ft8 integration; round 2

[dlsolt]

Added Oliver's suggestions to the code.

[KI3P]

I get the following error when I try to compile. Is there a missing file that defines a new data type?

Phoenix/code/src/PhoenixSketch/MainBoard_AudioIO.cpp:129:1: error: 'AudioOutputUSB' does not name a type; did you mean 'AudioOutputTDM'?
  129 | AudioOutputUSB usbOut;

[KI3P]

I get the following error when I try to compile. Is there a missing file that defines a new data type?

Phoenix/code/src/PhoenixSketch/MainBoard_AudioIO.cpp:129:1: error: 'AudioOutputUSB' does not name a type; did you mean 'AudioOutputTDM'?
  129 | AudioOutputUSB usbOut;

I just configured GitHub to attempt to compile a pull request before allowing it to merge. This will help test for cases like this for future PRs (don't think the rule will run against this PR which was submitted before the change)