| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for noise suppression capable of obtaining an emphasis voice which is excellent in subjective voice quality without generating noise in an output signal, and achieving high emphasis voice quality by using a suppression coefficient suitable for all background noise. SOLUTION: The device includes: a coefficient calculation section for a silence part which calculates a coefficient for the silence part on the basis of an emphasis voice power spectrum and an estimation noise power spectrum; a coefficient storage section for storing a coefficient for a sonant part; and a post-suppression coefficient calculation section for calculating a post-suppression coefficient on the basis of the obtained coefficient for the silence part and that for the sonant part. COPYRIGHT: (C)2010,JPO&INPIT |
