I am creating something with an external I2S device and this works great so far.
I am trying to get a signal out when something is playing back, be it the raspberry or the I2S device and thought it should be doable with the DSP and as far as I can see it is working with the LED out of the box. If I play something back from the Raspberry it does light up. If I play something back from an external I2S device it does not.
I can not really identify the reason for that in the DSP program.
Thank you all beforehand!