i use matrix voice .i run beamforming receive
Are you following this guide?
you need to install from source and then build the project using the instructions provided.
After the demos built, the executables should be inside
matrix-creator-hal/build/demos. You should have a
direction_of_arrival_demo_direct app there you can run.
This example is a simple beamforming we provide demostrating how to access the microphones and compute the sum and delay. For a more complete solution you can try ODAS here