Rate-distortion control scheme in audio encoding

Details Rate-distortion control scheme in audio encoding Rate-distortion control scheme in audio encoding

2003-09-29

2008-03-25

Harper, V. Paul (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S201000

Reexamination Certificate

active

07349842

ABSTRACT:
An initial number of bits associated with an initial common scale factor is determined, an initial increment is computed using the initial number of bits and a target number of bits, and the initial scale factor is incremented by the initial increment. Further, the incremented common scale factor is adjusted based on the target number of bits, and individual scale factors are computed based on the adjusted common scale factor and allowed distortion. If a current number of bits associated with the computed individual scale factors exceeds the target number of bits, the adjusted common scale factor is modified until a resulting number of bits no longer exceeds the target number of bits.

REFERENCES:
patent: 4964113 (1990-10-01), Geyer et al.
patent: 5488665 (1996-01-01), Johnston et al.
patent: 5497435 (1996-03-01), Berger
patent: 5535300 (1996-07-01), Hall, II et al.
patent: 5596676 (1997-01-01), Swaminathan et al.
patent: 5636324 (1997-06-01), Teh et al.
patent: 5657454 (1997-08-01), Benbassat et al.
patent: 5703579 (1997-12-01), Nonaka et al.
patent: 5717764 (1998-02-01), Johnston et al.
patent: 5729556 (1998-03-01), Benbassat et al.
patent: 5748763 (1998-05-01), Rhoads
patent: 5758315 (1998-05-01), Mori
patent: 5777812 (1998-07-01), Kim
patent: 5864802 (1999-01-01), Kim
patent: 5893066 (1999-04-01), Hong
patent: 5946652 (1999-08-01), Heddle
patent: 5956674 (1999-09-01), Smyth et al.
patent: 5982935 (1999-11-01), Arbel
patent: 5999899 (1999-12-01), Robinson
patent: 6108622 (2000-08-01), Xue
patent: 6173024 (2001-01-01), Nanba et al.
patent: 6282631 (2001-08-01), Arbel
patent: 6295009 (2001-09-01), Goto
patent: 6298087 (2001-10-01), Luna et al.
patent: 6308150 (2001-10-01), Neo et al.
patent: 6330335 (2001-12-01), Rhoads
patent: 6344808 (2002-02-01), Taruki et al.
patent: 6349284 (2002-02-01), Park et al.
patent: 6424939 (2002-07-01), Herre et al.
patent: 6456963 (2002-09-01), Araki
patent: 6456968 (2002-09-01), Taniguchi et al.
patent: 6484142 (2002-11-01), Miyasaka et al.
patent: 6487535 (2002-11-01), Smyth et al.
patent: 6529604 (2003-03-01), Park et al.
patent: 6542863 (2003-04-01), Surucu
patent: 6577252 (2003-06-01), Hotta
patent: 6587057 (2003-07-01), Scheuermann
patent: 6662154 (2003-12-01), Mittal et al.
patent: 6704705 (2004-03-01), Kabal et al.
patent: 6794996 (2004-09-01), Tsutsui et al.
patent: 6799164 (2004-09-01), Araki
patent: 6950794 (2005-09-01), Subramaniam et al.
patent: 2003/0079222 (2003-04-01), Boykin et al.
patent: 2003/0083867 (2003-05-01), Lopez-Estrada et al.
patent: 2003/0088400 (2003-05-01), Nishio et al.
patent: 2003/0115052 (2003-06-01), Chen et al.
patent: 2003/0142746 (2003-07-01), Tanaka et al.
patent: 2003/0187634 (2003-10-01), Li
patent: 2003/0215013 (2003-11-01), Budnikov
patent: 2004/0088160 (2004-05-01), Manu
patent: 2004/0162720 (2004-08-01), Jang et al.
Smithers et al., “Increased efficiency MPEG-2 ACC Encoding” AES 111th Convention, New York, NY, Sep. 21-24, 2001.
Poondikulam L.S., et al., “Efficient Implementation of Transform Based Audio Coders Using SIMD Paradigm and Multifunction Computations,” Sasken Communication Technologies, Limited, Bangalore, India, Available: http://www.sasken.com/others/wpapers/paper—0007.pdf, 5 pages.
Wang, Y., et al., “An Excitation Level Based Psychoacoustic Model For Audio Compression,” Nokia Research Center, Speech and Audio Systems Lab, Tampere Finland, Downloaded May 29, 2003, Available: http://www.kom.e-technik.tu-darmstadt.de/acmmm99/ep/wang.
Daniel Domazet, Mario Kovac, “Advanced Software Implementation Of MPEG-4 AAC Audio Encoder”, EC-VIP-MC, 2003, 4thEURASIP Conference Focused On Video/Imaging Processing and Multimedia Communications, Jul. 2-5, 2003, Zagreb, Croatia.
K. Brandenburg and H. Popp, “An Introduction To MPEG Layer-3”, EBU Technical Review, Jun. 2000, pp. 1-15, Popp and Brandenburg, (Fraunhofer IIS).

Affiliated with

Also associated with

Rating

Rate-distortion control scheme in audio encoding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rate-distortion control scheme in audio encoding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate-distortion control scheme in audio encoding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3963057