Speech encoding apparatus and speech encoding method that...

Details Speech encoding apparatus and speech encoding method that... Speech encoding apparatus and speech encoding method that...

2011-08-02

2011-08-02

Dorvil, Richemond (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S219000, C704S223000, C704S500000, C704SE19035

Reexamination Certificate

active

07991611

ABSTRACT:
An audio encoding device for correcting a component having insufficient encoding capability in a core layer by an extended layer. A core layer encoder encodes an audio signal. An extended layer encoder encodes an encoding residual of the core layer encoder. A characteristic correction inverse filter arranged at a pre-stage of an LPC synthesis filter subjects the component having insufficient encoding capability in the core layer to an inverse characteristic correction process, and a characteristic correction filter arranged at a post-stage of the LPC synthesis filter performs a process for characteristic correction of the synthesis signal inputted from the LPC synthesis filter.

REFERENCES:
patent: 5353373 (1994-10-01), Drogo de Iacovo et al.
patent: 5886276 (1999-03-01), Levine et al.
patent: 6092041 (2000-07-01), Pan et al.
patent: 6246979 (2001-06-01), Carl
patent: 6385573 (2002-05-01), Gao et al.
patent: 6615169 (2003-09-01), Ojala et al.
patent: 7272555 (2007-09-01), Lee et al.
patent: 7277849 (2007-10-01), Streich et al.
patent: 7596491 (2009-09-01), Stachurski
patent: 2001/0053972 (2001-12-01), Amada et al.
patent: 2002/0107686 (2002-08-01), Unno
patent: 2003/0220783 (2003-11-01), Streich et al.
patent: 2005/0197833 (2005-09-01), Yasunaga et al.
patent: 2005/0278174 (2005-12-01), Sasaki et al.
patent: 2006/0122830 (2006-06-01), Lee et al.
patent: 2006/0271356 (2006-11-01), Vos
patent: 2008/0052066 (2008-02-01), Oshikiri et al.
patent: 2008/0065373 (2008-03-01), Oshikiri
patent: 2008/0091419 (2008-04-01), Yoshida et al.
patent: 2008/0091440 (2008-04-01), Oshikiri
patent: 2008/0294429 (2008-11-01), Su et al.
patent: 2008/0312915 (2008-12-01), Den Brinker et al.
patent: 2009/0076830 (2009-03-01), Taleb
patent: 8-160996 (1996-06-01), None
patent: 10-97295 (1998-04-01), None
patent: 10-242867 (1998-09-01), None
patent: 11-259098 (1999-09-01), None
patent: 03/071522 (2003-08-01), None
Erdmann et al. “Embedded Speech Coding Based on Pyramid CELP” 2002.
Jin et al. “Scalable Audio Coder Based on Quantizer Units of MDCT Coefficients” 1999.
Dong et al. “Universal Successive Refinement of CELP Speech Coders” 2001.
Byun et al. “An Embedded ACELP Speech Coding Based on the AMR-WB Codec” Apr. 2005.
Koishida et al. “A 16-kbit/s Bandwidth Scalable Audio Coder Based on the G.729 Standard” 2000.
Kataoka et al. “Scalable Wideband Speech Coding Using G.729 as a Component” Mar. 2003.
Jung et al. “A Bit-Rate/Bandwidth Scalable Speech Coder Based on ITU-T G.723.1 Standard” 2004.
Kovesi et al. “A Scalable Speech and Audio Coding Scheme With Continuous Bitrate Flexibility” 2004.
Oshikiri et al. “Efficient Spectrum Coding for Super-Wideband Speech and Its Application to 7/10/15 KHZ Bandwidth Scalable Coders” 2004.
Ragot et al. “ITU-T G.729.1: An 8-32 kbit/s Scalable Coder Interoperable With G.729 for Wideband Telephony and Voice Over IP” 2007.
Deshpande et al. “A Novel BWE Scheme Based on Spectral Peaks in G.729 Compressed Domain” 2005.
Oshikiri et al. “A Scalable Coder Designed for 10-KHZ Bandwidth Speech” 2002.
Jelinek et al. “Wideband Speech Coding Advances in VMR-WB Standard” 2007.
Kataoka et al. “A 16-kbit/s Wideband Speech Codec Scalable With G.729” 1997.
Oshikiri et al. “AN 8-32 kbit/s Scalable Wideband Coder Extended with MDCT-based Bandwidth Extension on top of a 6.8 kbit/s Narrowband CELP Coder” 2007.
Kataoka et al., “G. 729 o Kosei Yoso to shite Mochiiru Scalable Kotaiiki Onsei Fugoka”, The Transactions of the Institute of Electros, Mar. 1, 2003, Voi. J86-D-II, No. 3, pp. 379-387.
English language Abstract of JP 10-97295.
M.R. Schroeder et al., “Code—Excited Linear Prediction (CELP) : High—Quality Speech at Very Low Bit Rates”, Proc. IEEE ICASSP85, 25.1.1, pp. 937-940, 1985.

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