Noise suppression method, device, and program

摘要

The noise suppression device includes: a shock noise detection unit which receives an input signal including a shock noise and detects a shock noise according to a change of the input signal; and a shock sound suppression unit which receives the shock sound detection result and the input signal so as to suppress the shock sound.

主权项

1. A noise suppression method, comprising:
converting an input signal including a desired signal and noise into a frequency region signal; obtaining information as to whether or not shock noise exists by employing a flatness degree of the above frequency region signal and a changed quantity of the above frequency region signal in a high frequency range; and suppressing the shock noise by employing the above information as to whether or not the shock noise exists and said frequency region signal.