Patent
1994-11-04
1997-01-07
MacDonald, Allen R.
395 239, G10L 900, G10L 302
Patent
active
055925847
ABSTRACT:
A method and apparatus for performing a Modified Discrete Cosine Transform on an audio signal is disclosed which utilizes a Discrete Fourier Transform. Illustratively, the MDCT spectral coefficients for the signal are generated from the real FFT spectral coefficients.
REFERENCES:
patent: 4813056 (1989-03-01), Fedele
patent: 4856068 (1989-08-01), Quatieri, Jr. et al.
patent: 4885790 (1989-12-01), McAulay et al.
patent: 4896362 (1990-01-01), Veldhuis et al.
patent: 4937873 (1990-06-01), McAulay et al.
patent: 4942607 (1990-07-01), Schroder et al.
patent: 5105463 (1992-04-01), Veldhuis et al.
patent: 5142656 (1992-08-01), Fielder et al.
patent: 5222189 (1993-06-01), Fielder
patent: 5230038 (1993-07-01), Fielder et al.
patent: 5297236 (1994-03-01), Antill et al.
Johnston, "Perceptual Transform Coding of Wideband Stereo Signals," IEEE/ICASSP-89, 23-26 May 1989, pp. 1993-1996.
Johnston, "Transform Coding of Audio Signals Using Perceptual Noise Criteria," IEEE/JSAC, Feb. 1988, pp. 314-423.
Ferreira Anibal J.
Johnston James D.
Grover John Michael
Harman John M.
Lucent Technologies - Inc.
MacDonald Allen R.
Restaino Thomas A.
LandOfFree
Method and apparatus for two-component signal compression does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for two-component signal compression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for two-component signal compression will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1772059