Audio quantization

Details Audio quantization Audio quantization

H - Electricity

03

M

H03M 7/30 (2006.01)

Patent

CA 2673745

For supporting a selection of a predictive or non-predictive quantization in the scope of an audio signal coding, it is determined whether an error resulting with a non-predictive quantization of an audio signal segment lies below a predetermined threshold value. An audio signal segment quantized with the non-predictive quantization is provided as a part of an encoded audio signal at least in case it is determined that the error resulting with the non-predictive quantization of the audio signal segment lies below a predetermined threshold value. Otherwise, an audio signal segment quantized with predictive quantization is provided as a part of an encoded audio signal.

Pour supporter une sélection d'une quantification prédictive ou non prédictive dans la portée d'un codage de signal audio, il est déterminé si une erreur résultant d'une quantification non prédictive d'un segment de signal audio se trouve en deçà d'une valeur de seuil prédéterminée. Un segment de signal audio quantifié avec la quantification non prédictive est fourni en tant que partie d'un signal audio codé au moins dans le cas où il est déterminé que l'erreur résultant avec la quantification non prédictive du segment de signal audio se trouve en deçà d'une valeur de seuil prédéterminée. Sinon, un segment de signal audio quantifié avec la quantification prédictive est fourni en tant que partie d'un signal audio codé.

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