Analog audio¶
The system can follow allow with any analog audio, such as the headphone output from a PC/phone or from the Monitor output of your amplifier. To do this, you will need to add an anaolgi input (mic input) to:
- Connect an external audio in sound card to the RaspberryPi
- Determine which analog input is the correct one (the RPi may detect multiple audio devices)
- Update overrides.cfg with the correct device
Soundcards¶
something about USB sound cards
Use toolsfind_audio.py Set device ID as 3
Note, if you sometimes connect an external monitor HDMI wih internal speakers, then the sound device list will renumerate, so the USB sound card you used while headless may now be a different number.
sample 1: tool output running headless
[1, 2]
sample 2: Same output, but now with HDMI monitor connected.
[1, 2, 3]
Note the USB audio device is now device 3.