DIY Acoustic Camera: Locating Sound Sources on a Budget
2025-03-29
This project details the construction of a low-cost acoustic camera using readily available hardware and open-source software. The author utilizes a miniDSP UMA-16 microphone array and custom Python scripts to capture synchronized 16-channel audio and video. Beamforming is achieved using the Acoular library, visualizing sound pressure levels and merging the results with the video stream. The post includes code examples and a comparison with an earlier attempt using a ReSpeaker 4 microphone array and a GCC-PHAT algorithm, demonstrating a surprisingly effective and affordable approach to sound localization.
Hardware
acoustic camera