Technique for parametric coding of a signal containing...

Details Technique for parametric coding of a signal containing... Technique for parametric coding of a signal containing...

H - Electricity

04

R

H04R 5/04 (2006.01) G10L 19/00 (2006.01) G10L 19/02 (2006.01) H04S 1/00 (2006.01)

Patent

CA 2326495

In a communications system, parametric coding in accordance with the invention is implemented to generate a representation of a stereo audio signal, which is composed of a left channel signal (L) and a right channel signal (R). To efficiently utilize transmission bandwidth, such a representation contains (1) information concerning only one of the L and R signals, and (2) parametric information based on which, together with (1), the other signal can be recovered. Because of the design of the parametric coding, the representation advantageously captures localization cues of the stereo audio signal, including intensity and phase characteristics of L and R. As a result, tie stereo audio signal recovered from the transmitted representation affords a high stereo quality.

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