Patent ID: 8885442
Filing Date: 2014-11-11
Classification: G01H,H04S

Abstract:
1. A method for determining an acoustic property of an environment using a directional microphone system having direction microphones each arranged to detect sound waves from a corresponding direction, the method comprising: detecting a sound signal and at least two reflected sound signals of the sound signal with respective directional microphones of the directional microphone system, automatically determining for each of the reflected sound signals a time difference between a time of reception of the sound signal and a time of reception of each reflected sound signal, automatically determining for each of the reflected sound signals an angle between a reception direction in which the sound signal was received and a reception direction in which each reflected sound signal was received, and automatically determining an arrangement of sound reflecting surfaces in the environment based on the determined time differences, angles and predetermined constraints defining arrangement constraints of the sound reflecting surfaces, wherein the constraints comprise predetermined orientations of the sound reflecting surfaces with respect to each other.