Audio signal processing device, signal recovering device,...

Details Audio signal processing device, signal recovering device,... Audio signal processing device, signal recovering device,...

2006-09-22

2009-10-20

Chawan, Vijay B (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

C704S229000, C704S220000, C704S500000, C704S223000, C704S207000

Reexamination Certificate

active

07606711

ABSTRACT:
The pitch extracting part generates a pitch waveform signal in a manner making the time interval of the pitch of the input audio sound data to be the same. After the number of samples in each region is made to be the same by the re-sampling part, the pitch waveform signal is changed into a subband data that express a time-varying-strength of a basic frequency composition and a higher harmonic composition by the subband analyzing part. The subband data are superimposed by a modulation wave composition that expresses attaching data of an attaching object by the data attaching part and is regarded as a bit stream to output through a nonlinear quantizing. A portion expressing the higher harmonic composition that is made corresponding to the audio sound expressed by this audio sound data in the subband data are deleted by the encoding part.

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