An acoustic camera is just like a regular optical camera, but is used to capture sound instead. Our project's aim is to create an open-source acoustic camera at significantly lower cost than commercial devices.
The acoustic camera consists of an array of mics. Sound from these mics are sampled and processed by a delay-and-sum beamforming algorithm. The result is a heatmap corresponding to intensities of sound from different points in space, thus resembling in a false colour image of 'sound'.
To learn more about the working of the acoustic camera, check out this list of resources.
- hardware/ consists of code for a Teensy 3.6 microcontroller, which was used in our first prototype.
- simulations/ has a python program to simulate an acoustic camera implementation.
- tools/ has misc programs like serial port plotters and visualisers.