Patent ID: 9151662
Filing Date: 2015-10-06
Classification: G01H

Abstract:
1. A method for visualizing sound source energy distribution in an echoic environment, comprising: arranging a plurality of arrayed sound pickup units in an echoic environment, wherein each sound pickup unit includes at least two microphones separated by a directive distance enabling the sound pickup unit to have a primary pickup direction; disposing the sound pickup units with the primary pickup directions thereof pointing toward a sound source in the echoic environment to measure the sound source, wherein each of the microphones obtains a sound pressure signal and the sound pressure of each microphone within the sound pickup unit is added and divided by the number of the microphones to obtain a sound pressure parameter; substituting the directive distance and the sound pressure parameter into a value-array based algorithm to obtain a directive sound pressure parameter; substituting the directive sound pressure parameter into an ESM (Equivalent Source Method); and calculating a sound source energy distribution profile.