Design and build of a planar acoustic camera using digital microphones

Acoustic cameras are widely used as a tool for noise source investigation. Conventionally, an acoustic camera system consists of a camera combined with an array of microphones, and data acquisition system. This work aims to design and build an acoustic camera based on hardware and software that available in the market. As a result of this work, a development environment of an acoustic camera system based on a use of digital microphone and Raspberry Pi is proposed. An acoustic camera was built and test. The details on hardware integration and development environment are discussed in this paper.