Up-sampling television audio signals for encoding

Details Up-sampling television audio signals for encoding Up-sampling television audio signals for encoding

H - Electricity

04

N

H04N 7/08 (2006.01) H04N 7/084 (2006.01) H04N 7/087 (2006.01)

Patent

CA 2575931

A television audio signal encoder (58) includes an up-sampler (70, 72, 74) that inserts additional samples into a sum signal, a difference signal, and/or a secondary audio program signal to increase the sample rate of the corresponding signal or signals. The sum signal represents the sum of a left channel digital audio signal and a right channel digital audio signal and the difference signal represents the difference between the left and right audio signals.

L'invention concerne un codeur de signaux audio de télévision comprenant un suréchantillonneur qui insère des échantillons additionnels dans un signal de sommation, un signal de différence, et/ou un signal de programme audio secondaire pour augmenter le taux d'échantillonnage du ou des signaux correspondants. Le signal de sommation représente la somme d'un signal numérique audio de canal gauche et d'un signal numérique audio de canal droit et le signal de différence représente la différence entre les deux.

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