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ed-xmos / mic_aggregator_demo

16 PDM mics to TDM 16 or USB Audio 2.0 demo
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Unknown Microphone Arrangement #3

Open gargar165 opened 1 year ago

gargar165 commented 1 year ago

I was reading through the README, and I am not sure how the microphone array was arranged when making this project. Is it set up for a circular or linear microphone array, and in what order were the microphones placed?

ed-xmos commented 1 year ago

The mic array aggregator app doesn't care about the mic arrangement - it a bridge from PDM mics to a host friendly audio interface. There is no processing (other than saturating gain). Whatever subsequent processing on the host (beam-former or point noise reduction for example) may make assumptions about the microphone placement and will dictate how the mics should be arranged. Alternatively, the processing could be integrated into the XCORE at which point geometry would be something the firmware would care about.

ed-xmos commented 1 year ago

One other point, this app has been tidied and integrated into a new repo now - https://github.com/xmos/sln_voice/tree/develop/examples/mic_aggregator

I will deprecate this app and put in a re-direct