LED showing DOA on ReSpeaker 6-Mic Array for Raspberry Pi

Products & Technology ReSpeaker
#1

Hi there,



I’m in the process of setting up the ReSpeaker 6-Mic array on my Raspberry Pi 4.

I was wondering if you have some ideas on how to show the direction of arrival (DOA) by lighting up one LED on the ring (the closest to the direction)?



I can get the example for pixel_ring respeaker_4mic_array.py to work, so I know controlling the LEDs works. Also, the mic_array vad_doa.py example works as well, so I can see that there’s some detection of sound and direction. But when I try to run something like pixel_ring.wakeup(30), where I would expect 30 to indicate the direction, I get a loop of colors lighting up, while I was hoping for only one LED on the board to light up, around 30 degrees from the reference point.



Any suggestions?



Thanks in advance!



/Paula

#2

I figured it out in the end. The green LED actually shows the direction, with MIC2 as reference angle - I must have missed this in the documentation.