Thanks for your reply. I have now tried that pin but no luck. Reading the info, I think that might just be for Teensy 4 not 4.1. The two are very different so it is unlikely that it would happen to be the same pin.
I would like to know how to...
I have a very basic question. I want to start by taking audio input and simply directing it to the audio output. I'm going to do more with it later but that's my starting point. I know that the output works. I have my speaker connected to pin 10...