DAC+ DSP LED behaviour


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.

Any ideas?

Thank you all beforehand!


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