Automatic localization of microphone positions for impulse response measurements

Abstract

When performing measurements where many microphone positions are required, measuring every position of these microphones can be tedious work. This thesis looks into the possibilities of automating this process. A well-known method for automatic position detection is the principle of trilateration, which requires three reference positions and equipment accordingly. With the intent of reducing the number of reference positions, this thesis proposes a fundamentally different principle, which requires only one reference position, but makes up for the loss of information by also measuring angles from this reference position. Based on this principle, two specific methods of automatic microphone localization are proposed. The first proposition involves using a combination of an IMU and a Soundfield microphone, and the second proposition is based on locating an LED with a camera.