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Codieren und Decodieren von Audiosignalen unter Verwendung von Intensity-Stereo und Praediktion

Audio signal encoding method - provides intensity-stereo coded spectral values for each scale factor carried by one channel while other channel carries zero stereo audio spectral values.
 
: Gbur, U.; Dietz, M.; Gerhaeuser, H.; Herre, J.; Brandenburg, K.; Quackenbush, S.

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Frontpage ()

DE 1996-19628293 A: 19960712
DE 1996-19628293 A: 19960712
EP 1997-927117 AW: 19970603
WO 1997-EP2875 A: 19970603
DE 19628293 C1: 19971211
EP 910928 B1: 20000112
EP 910928 B1: 20000112
H03M0007
H04S0001
Deutsch
Patent, Elektronische Publikation
Fraunhofer IIS A ( IIS) ()

Abstract
The method involves grouping of the stereo audio spectral values in scale factor bands, before coding via an intensity-stereo method, so that one channel carries the intensity-stereo coded stereo audio spectral values and the other channel carries stereo audio spectral values equal to zero. The intensity-stereo coded stereo audio coded values are decoded for each scale factor band and a prediction method is used to provide the coded stereo audio spectral values for the other channel. ADVANTAGE - Reduced bit rate for increased data transmission rate without impaired quality.

: http://publica.fraunhofer.de/dokumente/PX-8004.html