I have a Teensy 4 / Audio shield (Rev D) running USB audio, and it's working perfectly using line out to an amplifier.
What I would like to do is connect a DAB+ module I have here as an alternate input, so the Teensy can do USB audio or receive I2S from the DAB module and forward that to the line out.
As I understand it, the teensy uses the I2S port tyo send the data to the audio shield. Is it possible to have the DAB module share the same I2S port (and I use a mixer to switch between I2S and USB), or does it need to use I2S2?
What I would like to do is connect a DAB+ module I have here as an alternate input, so the Teensy can do USB audio or receive I2S from the DAB module and forward that to the line out.
As I understand it, the teensy uses the I2S port tyo send the data to the audio shield. Is it possible to have the DAB module share the same I2S port (and I use a mixer to switch between I2S and USB), or does it need to use I2S2?