M
Masayuki Nishiguchi
Researcher at Sony Broadcast & Professional Research Laboratories
Publications - 263
Citations - 3304
Masayuki Nishiguchi is an academic researcher from Sony Broadcast & Professional Research Laboratories. The author has contributed to research in topics: Signal & Audio signal. The author has an hindex of 33, co-authored 263 publications receiving 3299 citations. Previous affiliations of Masayuki Nishiguchi include Akita Prefectural University.
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Patent
Voice analysis-synthesis method
TL;DR: In this paper, a voice analysis-synthesis method comprising the steps of: dividing an input voice signal on block-by-block basis and finding pitch data in the block, converting the voice signal onto frequency axis and finding data on the frequency axis, dividing the data on frequency axis into plural bands on the basis of the pitch data, finding the power information for each of the divided bands and voiced/unvoiced decision information, transmitting (902) the pitch and power information, the power for each band and the voiced/unaided decision information found in foregoing
Patent
Fast fourier transform method and fast inverse fourier transform method
TL;DR: In this paper, the problem of obtaining N =M×2n (M is an odd number) point FFT and IFFT for input data was solved by computing the product of obtained y(k) and a twist coefficient w(i,k).
Patent
Voice coding method and voice encoder
TL;DR: In this article, the quantization error vector is further vector-quantized by vector quantization sections 670, 680, 660, and 6202, respectively, for each frame.