Title:
減少レート、可変レートの音声分析合成を実行する方法及び装置
Document Type and Number:
Japanese Patent JP4851578
Kind Code:
B2
Abstract:
It is an objective of the present invention to provide an optimized method of selection of the encoding mode that provides rate efficient coding of input speech. A rate determination logic element (14) selects a rate at which to encode speech. The rate selected is based upon the target matching signal to noise ration computed by a TMSNR computation element (2), normalized autocorrelation computed by a NACF computation element (4), a zero crossings count determined by a zero crossings counter (6), the prediction gain differential computed by a PGD computation element (8) and the interframe energy differential computed by a frame energy differential element (10).
Inventors:
Andrew P. Dejaco
Application Number:
JP2009262773A
Publication Date:
January 11, 2012
Filing Date:
November 18, 2009
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
G10L19/00; G10L15/20; G10L19/06; G10L25/93; H03M7/30; H04B1/66
Domestic Patent References:
| JP3181232A | ||||
| JP1233500A | ||||
| JP3505929A |
Foreign References:
| WO1992022891A1 |
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen