Patent ID: 8306236
Filing Date: 2012-11-06
Classification: H04R

Abstract:
1. A sound field measuring apparatus, comprising: a microphone set having a first and a second microphone attached together and arranged at a prescribed interval, which collect audio signals outputted from a first and a second speaker; a measuring unit configured to measure distances between the first and second speakers and the first and second microphones based on squared waveforms of the audio signals collected by the first and second microphones; and a position calculating unit for calculating coordinate positions of the first and second microphones and candidate coordinate positions and an actual coordinate position of the second speaker when the first speaker is taken as a reference coordinate position based on respective measured distances, wherein the microphone set is separated from the speakers and is configured to be moved from a first measurement position to a second measurement position with respect to the first speaker to enable calculating the coordinate positions of the first and second microphones at the second measurement position and calculating the candidate coordinate positions and the actual coordinate position of the second speaker.