| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a voice signal processor capable of sufficiently suppressing noise without deteriorating sound quality.SOLUTION: The present invention is related to a voice signal processor in which noise signal formation means forms noise signals from input voice signals and frequency subtraction means performs spectrum subtraction on the noise signals formed from the input voice signals to suppress noise components included in the input voice signals. The processor includes noise smoothing means that smooths the noise signals formed by the noise signal formation means in a frequency area and then feeds them to the frequency subtraction means.</p> |
