Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
Reexamination Certificate
2011-05-17
2011-05-17
Azad, Abul (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
C704S229000
Reexamination Certificate
active
07945449
ABSTRACT:
Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.
REFERENCES:
patent: 5523396 (1996-06-01), Sato
patent: 5539829 (1996-07-01), Lokhoff
patent: 5583962 (1996-12-01), Davis
patent: 5606618 (1997-02-01), Lokhoff
patent: 5621855 (1997-04-01), Veldhuis
patent: 5632005 (1997-05-01), Davis
patent: 5633981 (1997-05-01), Davis
patent: 5636324 (1997-06-01), Teh et al.
patent: 5727119 (1998-03-01), Davidson
patent: 5812971 (1998-09-01), Herre
patent: 6021386 (2000-02-01), Davis
patent: 6502069 (2002-12-01), Grill et al.
patent: 6691086 (2004-02-01), Lokhoff
patent: 7116787 (2006-10-01), Faller
patent: 7394903 (2008-07-01), Herre et al.
patent: 7447629 (2008-11-01), Breebaart
patent: 2003/0035553 (2003-02-01), Baumgarte
patent: 2003/0187663 (2003-10-01), Truman et al.
patent: 2003/0195742 (2003-10-01), Tsushima et al.
patent: 2003/0219130 (2003-11-01), Baumgarte et al.
patent: 2003/0236583 (2003-12-01), Baumgarte et al.
patent: 2004/0086130 (2004-05-01), Eid et al.
patent: 2004/0125487 (2004-07-01), Sternad
patent: 2005/0058304 (2005-03-01), Baumgarte et al.
patent: 2006/0009225 (2006-01-01), Herre et al.
patent: 2007/0140499 (2007-06-01), Davis et al.
patent: 2008/0040103 (2008-02-01), Vinton et al.
patent: 2008/0046253 (2008-02-01), Vinton et al.
patent: WO 03/007656 (2003-01-01), None
patent: WO 03/090206 (2003-10-01), None
patent: WO 03/090207 (2003-10-01), None
patent: WO 03/090208 (2003-10-01), None
patent: WO 2006/026161 (2006-03-01), None
International Search Report, PCT/US2005/029157, Feb. 13, 2006.
Written Opinion of the International Searching Authority, PCT/US2005/029157, Feb. 13, 2006.
Schuijers, Erik, et al., Audio Engineering Society, Convention Paper 5852, “Advances in Parametric Coding for High-Quality Audio”, Presented at the 114thConvention, Amsterdam, The Netherlands, Mar. 22-25, 2003.
Herre, J., et al., Audio Engineering Society, Convention Paper 6447, “The Reference Model Architecture for MPEG Spatial Audio Coding”, Presented at the 118thConvention, Barcelona, Spain, May 28-31, 2005.
ATSC Standard A52/A: Digitial Audio Compression Standard (AC-3), Revision A, Advanced Television systems Committee, Aug. 20, 2001. The A52/A document is available on the World Wide Web at http://www.atsc.org/standards.html.
Vernon, Steve, “Design and Implementation of AC-3 Coders,” IEEE Trans. Consumer Electronics, vol. 41, No. 3, Aug. 1995.
Davis, Mark, “The AC-3 Multichannel Coder”, Audio Engineering Society Preprint 3774, 95thAES Convention, Oct. 1993.
Bosi, et al. “High Qualiy, Low-Rate Audio Transform Coding for Transmission and Multimedia Applications,” Audio Engineering Society Preprint 3365, 93rdAES Convention, Oct. 1992.
ISO/IEC JTC1/SC29, “Information Technology—Coding of audio-visual objects,” ISO/IEC IS-14496 (Part 3) 2001.
ISO/IEC 13818-7. “MPEG-2 advanced audio coding, AAC.” International Standard 1997.
Bosi, M., et al., “ISO/IEC MPEG-2 Advanced Audio Coding”, Proc. Of the 101stAES-Convention, 1996.
Bosi, M., et al., “ISO/IEC MPEG-2 Advanced Audio Coding”, Journal of the AES, vol. 45, No. 10, Oct. 1997, pp. 789-814.
Brandenburg, Karlheinz, “MP3 and AAC Explained,” Proc. Of the AES 17thInternational Conference on High Quality Audio Coding, Florence, Italy, 1999.
Soulodre, G.A., et al., “Subjective Evaluation of State-of-the-Art Two-Channel Audio Codes” J. Audio Eng. Soc., vol. 46, No. 3, pp. 164-177, Mar. 1998.
Faller, et al., “Binaural Cue coding Applied to Stereo and Multi-Channel Audio Compression,” Audio Engineering Society Convention Paper 5574, 112thConvention, Munich, May 2002.
Baumgarte, et al., “Why Binaural Cue Coding is Better Than Intensity Stereo Coding,” Audio Engineering Society Convention Paper 5575, 112thConvention, Munich, May 2002.
Baumgarte, et al., “Design and Evaluation of Binaural Cue Coding Schemes,” Audio Engineering Society Convention Paper 5706, 113thCovention, Los Angeles, Oct. 2002.
Faller, et al., “Efficient Representation of Spatial Audio Using Perceptual Parametrization,” IEEE Workshop on Applications of Signal Processing to Audio and Acoustics 2001, New Paltz, New York, Oct. 2001, pp. 199-202.
Baumgarte, et al., “Estimation of Auditory Spatial cues for Binaural Cue Coding”, Proc. ICASSP 2002, Orlando, Florida, May 2002, pp. II-1801-1804.
Faller, et al., “Binaural Cue Coding: A Novel and Efficient Representation of Spatial Audio,” Proc. ICASSP 2002, Orlando, Florida, May 2002, pp. II-1841-II-1844.
Breebaart, et al., “High-Quality parametric Spatial Audio Coding at Low Bitrates”, Audio Engineering Society Convention Paper 6072, 116thConvention, Berlin, May 2004.
Baumgarte, et al., “Audio Coder Enhancement Using Scalable Binaural Cue Coding with Equalized Mixing,” Audio Engineering Society Convention Paper 6060, 116thConvention, Berlin, May 2004.
Schuijers, et al., “Low Complexity Parametric Stereo Coding,” Audio Engineering Society Convention Paper 6073, 116thConvention, Berlin, May 2004.
Engdegard, et al., “Synthetic Ambience in Parametric Stereo Coding”, Audio Engineering Society Convention Paper 6074, 116thConvention, Berlin, May 2004.
Herre, et al., “Intensity Stereo Coding,” Audio Engineering Society Preprint 3799, 96thConvention, Amsterdam, 1994.
Xu, Li, Relative importance of temporal envelope and fine structure in lexical-tone perception (L), J. Acoust. Soc. Am., 114 (6), Pt. 1, Dec. 2003.
Seefeldt Alan Jeffrey
Vinton Mark Stuart
Azad Abul
Dolby Laboratories Licensing Corporation
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