| 摘要 |
PROBLEM TO BE SOLVED: To provide a speech processing device capable of easily performing a high-quality and efficient process according to a range by modeling a logarithm spectral envelope as a linear combination of a local basis. SOLUTION: This speech processing device includes a speech frame extraction part 11 which divides speech data into speech frames, an envelope extraction part 12 which extracts a logarithm spectral envelope from the obtained speech frame, a local base creation part 14 which creates a local base, a local base holding part 15 which holds the local base, and a parameter calculation part 13 which determines a spectral envelope parameter from the logarithm spectral envelope using the held local base. COPYRIGHT: (C)2009,JPO&INPIT
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