Just as the amazon echo has an led ring that points to the source of your voice, i would like to drive a stepper motor that turns the robots head.
As this would require a far field microphone array, i have found two boards that offer this functionality
The respeaker microphone array
https://www.amazon.com/gp/product/B071S2ZMSQ/ref=ox_sc_act_title_2?smid=A1YP59NGBNBZUR&psc=1
the matrix creator
https://www.matrix.one/products/creator
So although
I have basic arduino/rasbPi experience, I have no real hardware expertise. The speaker would require purchase of the core unit as well so it would be somewhat more expensive. But I do not know how to compare these two hardware platforms.
Has anyone any familiarity with this hardware?
Has anyone seen this problem solved before (so I dont need to reinvent the wheel)?
I have investigated 'homegrown'solutions using individual mics whose signals are compared and using phase differences to determine a direction(the mic closer to the sound source gets the signal sooner). However, this is not accurate when identifying a sound impulse and requires a continuous or repeating sound.
