Audio restoration device and method

The voice recovery apparatus and method for voice noise reduction restored close to the original speech is disclosed. Voice decompression device is a voice signal reduces the contained noise and the detection of a harmonic (harmonic) frequencies from the audio signal noise reduction and the noise reduction on the basis of the harmonic frequencies in the detected sound signal in the sound signal picked up by the microphone to recover close to the audio signal before it is input to the microphone. Speech reconstruction, the harmonic peak, valley