ESP32 Forum

is there a way to get more than the 4 i2s channels on the esp32?
I need 8, and it has to be i2s. For now my solution is to use 2 esp32. I wonder if there is a more economical and smaller solution.

It's a hack and would need you to rewrite the driver and the CPU probably needs to spend a fair amount of time reformatting the bits, but you could use the parallel mode of the I2S controller to generate up to 23 channels

Thanks for pointing me in the right direction.
If I implement a parallel i2s read using the camera mode, could I still have i2s serial write at the same time on the second i2s interface?

(What I need is read 6 channels, and output 1 channel.)

I think so, the two I2S peripherals are separate from eachother (although do note that there is only one APLL.)