Speech encoding method, apparatus and program

Details Speech encoding method, apparatus and program Speech encoding method, apparatus and program

2007-03-13

2007-03-13

McFadden, Susan (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

Reexamination Certificate

active

10675947

ABSTRACT:
A speech encoding method, apparatus and program wherein an input speech signal is divided into a plurality of frames each having a predetermined length, each of the frames is subdivided into a plurality of subframes, a predictive pitch period of a subframe in a to-be-encoded current frame is obtained by using pitch periods of at least two frames of the current frame and past and future frames with respect to the current frame; a pitch period of a subframe in the current frame is obtained by using the predictive pitch period, a relative pitch pattern codebook storing a plurality of relative pitch patterns representing fluctuations in pitch periods of a plurality of subframes is prepared, and a change in pitch period of plural subframes is expressed with one relative pitch pattern selected from the relative pitch pattern codebook.

REFERENCES:
patent: 5745871 (1998-04-01), Chen
patent: 5832437 (1998-11-01), Nishiguchi et al.
patent: 5884257 (1999-03-01), Maekawa et al.
patent: 5907826 (1999-05-01), Takagi
patent: 6067511 (2000-05-01), Grabb et al.
patent: 6078880 (2000-06-01), Zinser, Jr. et al.
patent: 6081776 (2000-06-01), Grabb et al.
patent: 6094629 (2000-07-01), Grabb et al.
patent: 6098036 (2000-08-01), Zinser, Jr. et al.
patent: 6119082 (2000-09-01), Zinser, Jr. et al.
patent: 6138092 (2000-10-01), Zinser, Jr. et al.
patent: 6202046 (2001-03-01), Oshikiri et al.
patent: 6330533 (2001-12-01), Su et al.
patent: 6427135 (2002-07-01), Miseki et al.
patent: 6470310 (2002-10-01), Oshikiri et al.
patent: 6704702 (2004-03-01), Oshikiri et al.
patent: 59-170894 (1984-09-01), None
patent: 61-25200 (1986-02-01), None
patent: 62-238599 (1987-10-01), None
patent: 1-502779 (1989-09-01), None
patent: 6-27996 (1994-02-01), None
patent: 6-161494 (1994-06-01), None
patent: 7-181991 (1995-07-01), None
patent: 8-202398 (1996-08-01), None
patent: 8-305398 (1996-11-01), None
patent: 8-328588 (1996-12-01), None
patent: 9-6397 (1997-01-01), None
patent: 9-34499 (1997-02-01), None
patent: 9-504124 (1997-04-01), None
Mei Yong, et al., “Efficient Encoding of the Long-Term Predictor in Vector Excitation Coders”, Advances in Speech Coding, Kluwer Academic Publishers, (1991), pp. 329-338.
D.K. Freeman, et al., “The Voice Activity Detector for the Pan-European Digital Cellular Mobile Telephone Service”; IEEE, Proc. ICASSP89, (1989), pp. 369-372.

Affiliated with

Also associated with

Rating

Speech encoding method, apparatus and program does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speech encoding method, apparatus and program, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech encoding method, apparatus and program will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3779584