A boundary microphone, also known as a PZM (Pressure Zone Microphone), is particularly useful in scenarios where capturing clear and consistent audio over a wide area is necessary. One common use case is in conference rooms or boardrooms during meetings. Here, the microphone is typically placed on a table to pick up voices from all participants equally, reducing the need for multiple microphones and minimizing issues with audio level variations. The boundary microphone’s design helps in reducing phase interference from reflected sound, resulting in clearer and more intelligible recordings of discussions, presentations, and teleconferences.

Another ideal application for boundary microphones is in theatrical and stage productions. Placing these microphones on the stage floor allows them to capture the voices and sounds of performers without being visually intrusive or requiring them to wear body microphones. This setup is beneficial for capturing ambient sound and dialogue from multiple actors moving around the stage. Additionally, boundary microphones can be effectively used in recording studios and for capturing sound in acoustically challenging environments, such as large halls or auditoriums, where traditional microphones might struggle with reflections and reverb. Their ability to capture direct sound with minimal coloration from room acoustics makes them versatile tools in various audio recording and amplification scenarios.