Acoustic signal encoding method and apparatus, acoustic...

Details Acoustic signal encoding method and apparatus, acoustic... Acoustic signal encoding method and apparatus, acoustic...

2002-06-11

2008-11-04

Hudspeth, David R. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal time compression or expansion

C704S226000, C704S227000

Reexamination Certificate

active

07447640

ABSTRACT:
In an acoustic signal encoding apparatus (100), a tonal noise verification unit (110) verifies whether the input acoustic time-domain signals are tonal or noisy. If the input acoustic time-domain signals are tonal, tonal component signals are extracted by a tonal component extraction unit (121), and tonal component parameters are normalized and quantized in a normalization/quantization unit (122). The residual time-domain signals, obtained on extracting the tonal component signals from the acoustic time-domain signals, are transformed by an orthogonal transforming unit (131) into the spectral information, which spectral information is normalized and quantized by a normalization/quantization unit (132). A code string generating unit (140) generates a code string from the quantized tonal component parameters and the quantized residual component spectral information.

REFERENCES:
patent: 5832424 (1998-11-01), Tsutsui
patent: 5886276 (1999-03-01), Levine
patent: 6061649 (2000-05-01), Oikawa et al.
patent: 6064954 (2000-05-01), Cohen et al.
patent: 6078880 (2000-06-01), Zinser et al.
patent: 6266644 (2001-07-01), Levine
patent: 6654723 (2003-11-01), Oomen et al.
patent: 07-168593 (1995-07-01), None
patent: 07-295594 (1995-11-01), None
patent: 07-336231 (1995-12-01), None
patent: 07-336233 (1995-12-01), None
patent: 07-336234 (1995-12-01), None
patent: 09-34493 (1997-02-01), None
patent: 09-101799 (1997-04-01), None
patent: 2000-338998 (2000-12-01), None
patent: 2001-7704 (2001-01-01), None
patent: WO 94/28633 (1994-12-01), None
patent: WO 95/12920 (1995-05-01), None
patent: WO 95/34956 (1995-12-01), None
Malvar, H.S., “Lapped transforms for efficient transform/subband coding,” Acoustics, Speech, and Signal Processing [see also IEEE Transactions on Signal Processing], IEEE Transactions on , vol. 38, No. 6pp. 969-978, Jun. 1990□□.
Working Draft of ISO/IE 14496-3 MPEG4 Audio V3.0—(Part 1 and Part 2 only); International Organization for Standardization; ISO/IECJTC1/SC29/WG11—Coding of Moving Pictures and Audio; Apr. 1997; Part 1—pp. 1-29—Master document; Part 2—pp. 1-29+Annex A—1-15; Annex B 16-18.

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