Method For Decoding An Audio Signal
First Claim
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1. A method of decoding an audio signal, comprising:
- receiving an audio signal including a spatial information signal and a downmix signal;
obtaining position information of a timeslot using a timeslot number and a parameter number included in the audio signal;
generating a multi-channel audio signal by applying the spatial information signal to the downmix signal according to the position information of the timeslot; and
arranging multi-channel audio signal correspondingly to an output channel.
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Abstract
The invention relates to a method for decoding an audio signal, to allow an audio signal to be compressed and transferred more efficiently. The inventive method comprises steps of receiving an audio signal with spatial information signal, obtaining location information using the number of time slot and parameter of audio signal, establishing a multi-channel audio signal by applying spatial information signal to down-mix signal, and performing a multi-channel array for a multi-channel audio signal in response to the output channel.
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Citations
12 Claims
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1. A method of decoding an audio signal, comprising:
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receiving an audio signal including a spatial information signal and a downmix signal; obtaining position information of a timeslot using a timeslot number and a parameter number included in the audio signal; generating a multi-channel audio signal by applying the spatial information signal to the downmix signal according to the position information of the timeslot; and arranging multi-channel audio signal correspondingly to an output channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12)
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10. An apparatus for decoding an audio signal, comprising:
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an upmixing unit upmixing an audio signal into a multi-channel audio signal; and a multi-channel arranging unit mapping the multi-channel audio signal to output channels according to a preset arrangement.
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11. An apparatus for decoding an audio signal, comprising:
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a core decoding unit decoding an encoded downmix signal; an arranging unit arranging the decoded audio signal according to a preset arrangement; and an upmixing unit upmixing the arranged audio signal into a multi-channel audio signal.
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Specification