| 摘要 |
<p>For each frequency component, an output spectrum (107) is obtained by comparing the values of plural noise suppression spectra (105, 106) outputted from plural noise suppressors (4, 5), selecting the largest value, and defining the selected value as the value of the frequency component. The first noise suppressor (4) generates a noise suppression spectrum (105) by multiplying an input spectrum (102) by an amplitude suppression gain. The amplitude suppression gain is larger than most of amplitude suppression gains in the noise signal section of the second noise suppressor (5).</p> |
