Removing time delays in signal paths
First Claim
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1. A method of processing an audio signal, comprising:
- receiving an audio signal including a downmix signal and spatial information;
converting the downmix signal from a first domain to a second domain; and
combining the converted downmix signal and the spatial information, wherein at least one of the combined downmix signal and the combined spatial information is delayed by an amount of time that includes an elapsed time of the converting.
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Abstract
The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths.
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Citations
21 Claims
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1. A method of processing an audio signal, comprising:
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receiving an audio signal including a downmix signal and spatial information;
converting the downmix signal from a first domain to a second domain; and
combining the converted downmix signal and the spatial information, wherein at least one of the combined downmix signal and the combined spatial information is delayed by an amount of time that includes an elapsed time of the converting. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for generating a plural-channel audio signal, comprising:
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a downmix decoder configured for processing an encoded downmix signal;
a plural-channel decoder operatively coupled to the downmix decoder and configured for generating a plural-channel audio signal;
a domain converter included in the plural-channel decoder and configured for converting the downmix signal from a first domain to a second domain; and
a delay processor included in the plural-channel decoder and configured for compensating the downmix signal for time delay resulting from converting the downmix signal. - View Dependent Claims (9, 10)
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11. A computer-readable medium having instructions stored thereon, which, when executed by a processor, causes the processor to perform the operations of:
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receiving an audio signal including a downmix signal and spatial information;
converting the downmix signal from a first domain to a second domain;
compensating at least one of the converted downmix signal and the combined signal for time delay resulting from converting the downmix signal; and
combining the converted downmix signal and the spatial information into a combined signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system for generating a plural-channel audio signal, comprising:
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a domain converter configured for converting a downmix signal from a first domain to a second domain;
a delay processor operatively coupled to the domain converter and configured for compensating the converted downmix signal for time delay resulting from the conversion; and
a plural-channel audio processor operatively coupled to the delay processor and configured for generating a plural-channel audio signal from the compensated downmix signal and spatial information. - View Dependent Claims (19, 20)
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21. A method of processing an audio signal, comprising:
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receiving an audio signal including a downmix signal and spatial information;
converting the downmix signal from a first domain to a second domain;
compensating at least one of the converted downmix signal and the combined signal for time delay resulting from converting the downmix signal; and
combining the converted downmix signal and the spatial information into a combined signal.
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Specification