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- MPEG-1 (section Entropy coding)stereo sound. MPEG-1 Audio Layer III was derived from the Adaptive Spectral Perceptual Entropy Coding (ASPEC) codec developed by Fraunhofer as part of the...90 KB (10,881 words) - 21:28, 23 March 2025
- Data compression (redirect from Perceptual audio coding)pulse-code modulation (DPCM). In 1973, Adaptive DPCM (ADPCM) was introduced by P. Cummiskey, Nikil S. Jayant and James L. Flanagan. Perceptual coding was...68 KB (7,556 words) - 22:09, 19 May 2025
- Linear predictive coding (LPC) is a method used mostly in audio signal processing and speech processing for representing the spectral envelope of a digital...14 KB (1,647 words) - 09:56, 19 February 2025
(Masking pattern adapted Universal Subband Integrated Coding And Multiplexing) and ASPEC (Adaptive Spectral Perceptual Entropy Coding). The MUSICAM technique...108 KB (11,633 words) - 06:42, 6 June 2025
and used in DAB (Digital Audio Broadcast), and ASPEC (Adaptive Spectral Perceptual Entropy Coding), which was used in a modified form in MP3 audio. E!...19 KB (1,376 words) - 07:50, 1 May 2025- associated with a given perceptual or behavioral experience can be quantified in terms of Claude Shannon's entropy formula. Entropy is well defined for equilibrium...63 KB (8,442 words) - 00:31, 23 May 2025
- Discrete cosine transform (section Speech coding)called motion-compensated DCT or adaptive scene coding, in 1981. Motion-compensated DCT later became the standard coding technique for video compression...101 KB (11,971 words) - 19:37, 19 May 2025
- motion compensation, inter-frame prediction, quantization, perceptual weighting, entropy encoding, variable encoding, and motion vectors, and decoding...50 KB (5,364 words) - 03:50, 2 June 2025
- A patent was issued in 1952. Perceptual coding — First used for speech coding compression, with linear predictive coding (LPC). Initial concepts for LPC...565 KB (51,702 words) - 02:02, 13 June 2025
- Principles of oblique rotation can be derived from both cross entropy and its dual entropy. Communality The sum of the squared factor loadings for all factors...72 KB (10,024 words) - 20:53, 8 June 2025
- of perceptual audio coding was investigated by Johnston, which led to the notion of perceptual entropy. Based on measurements the perceptual entropy was