Patent ID: 8050421

Claim:
An acoustic correction apparatus comprising: a signal obtaining module configured to obtain, through a single acoustic input module, an acoustic signal from a target space including an object to be measured and from an external space excluding the object; a signal output module configured to output to the target space a measurement signal for measuring an acoustic characteristic of the object; a coefficient identifying module configured to identify, on the basis of a response acoustic signal in the acoustic signal obtained by the signal obtaining module, a correction coefficient of a correction filter that reduces a resonance frequency component of a resonance in the object, the response acoustic signal being a response to the measurement signal output by the signal output module; a filtering module configured to use the correction filter having the identified correction coefficient, and filter the signal provided to the object; a noise cancelling module configured to remove, on the basis of the acoustic signal obtained by the signal obtaining module from the target space and the external space, a noise component comprised in the obtained acoustic signal from the signal filtered by the filtering module; and an output module configured to output the acoustic signal, from which the noise component is removed by the noise cancelling module, to the object.