Method and an Apparatus for Decoding an Audio Signal
First Claim
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1. A method for processing an audio signal performed by an audio coding system, comprising:
- receiving a downmix signal comprising at least one object signal, and object information determined when the downmix signal is generated;
receiving mix information for controlling the least one object signal; and
, bypassing the downmix signal if the downmix signal corresponds to a mono signal;
generating multi-channel information including at least one gain modification factor using the object information and the mix information if the downmix signal corresponds to a mono signal,wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal.
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Abstract
A method for processing an audio signal, comprising: receiving a downmix signal, an object information, and a mix information; generating a multi-channel information including at least one gain modification factor using the object information and the mix information, wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal is disclosed.
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Citations
8 Claims
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1. A method for processing an audio signal performed by an audio coding system, comprising:
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receiving a downmix signal comprising at least one object signal, and object information determined when the downmix signal is generated; receiving mix information for controlling the least one object signal; and
, bypassing the downmix signal if the downmix signal corresponds to a mono signal;generating multi-channel information including at least one gain modification factor using the object information and the mix information if the downmix signal corresponds to a mono signal, wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal. - View Dependent Claims (2, 3, 4)
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5. An apparatus for processing an audio signal, comprising:
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a downmix processing unit bypassing a downmix signal if the downmix signal corresponds to a mono signal; and
,an information generating unit receiving object information determined when the downmix signal is generated, and mix information for controlling at least one object signal, and generating multi-channel information including at least one gain modification factor using the object information and the mix information if the downmix signal comprising the at least one object signal corresponds to a mono signal, wherein the gain modification factor corresponds to a time-subband-variant factor for controlling gain of the downmix signal. - View Dependent Claims (6, 7, 8)
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Specification