did you ever receive an answer to this?

Interested in this as well.
Have you found a solution?

Thanks for the tip!
I got it to work.
The i2s driver sets the clock pin to OUTPUT.
changed it to input and output and mapped it to the second interface using the gpio matrix

Is it possible to attach an interrupt to the i2s ws clock? I tried the below, but it never gets called. void IRAM_ATTR test_isr(void *arg) { printf("TEST"); } #define SAMPLE_RATE 8000 #define MIC_SAMPLES_BUF 256 #define DMA_BUF_SPEAKER_CNT 5 void i2s_init_test(void) { i2s_config_t i2s_config_TX = { ...

I set up a TX i2s interface on my esp32 and can see the master clock and left-right clock fine on my osciloscope. I also set up a a second i2s RX interface with its own clock. Now I was wondering about two things: - Can I re-use the TX clock pins to drive both i2s interfaces ? - Can I read those clo...

Not sure if there is a more convenient way (maybe platformIO), but you could use:
https://github.com/espressif/esptool

are you on the same wifi channel for esp-now and normal wifi?
I have not tried it myself, but I think that is a requirement. Then it should work.

edit:
https://github.com/espressif/arduino-esp32/issues/878

Is there a way to tell the esp32 to sample data at the falling edge of the clock instead of the rising edge, when sampling parallel data through i2s camera mode?

Did anyone manage to capture more than 4 audio channels using the parallel camera mode?