Speech enhancement device, speech enhancement method, and speech processing program

摘要

The speech enhancement device extracts a component including a fundamental frequency (F0) of speech from an input signal and outputs it as a first filter signal, and a first formant (F1) of speech from the input signal. And a second filter (22) that outputs the second filter signal as a second filter signal, and a component that includes the second formant (F2) of the voice from the input signal and outputs it as a third filter signal. A third filter (23), a first mixing unit (31) that mixes the first filter signal and the second filter signal and outputs a first mixed signal; a first filter signal; A second mixing unit (32) that mixes the three filter signals and outputs a second mixed signal; and delays the first mixed signal by a first delay amount (D1) to generate a first audio signal. A first delay control unit (41) to be generated; A second delay amount mixed signal (D2) a second delay control unit for generating a second audio signal is delayed (42) and.