Microphone Array Calibration

Microphone array calibration aims to accurately determine the relative positions and timing offsets between microphones within an array, crucial for precise sound source localization and other audio processing tasks. Current research heavily emphasizes robust calibration methods using simultaneous localization and mapping (SLAM) algorithms, often incorporating hybrid time difference of arrival (TDOA) measurements from both microphones and external sound sources to improve accuracy and robustness. These advancements are significantly impacting fields like robotics and hearing aid technology, enabling more sophisticated audio processing capabilities in challenging acoustic environments.