Apparatus and method for encoding and decoding multi-channel signal
AssigneeSamsung Electronics Co., Ltd.
InventorsJung-Hoe Kim, Eun Mi Oh, MiYoung Kim
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Abstract
Provided are an encoding apparatus and a decoding apparatus of a multi-channel signal. The encoding apparatus of the multi-channel signal may process a phase parameter associated with phase information between a plurality of channels constituting the multi-channel signal, based on a characteristic of the multi-channel signal. The encoding apparatus may generate an encoded bitstream with respect to the multi-channel signal using the processed phase parameter and a mono signal extracted from the multi-channel signal.
Claims6
A method of generating a multi-channel signal from a down-mixed mono signal, the method comprising:
- decoding a plurality of parameters that indicate characteristic relations between channels;
- estimating an overall phase difference (OPD) parameter representing a phase difference between one of a left signal and a right signal and the down-mixed mono signal, by using the decoded parameters;
- and
- up-mixing, performed by using at least one processor, the down-mixed mono signal using the decoded parameters and the estimated OPD parameter.
Dependencies are inferred from the claim text.