Method of Encoding and Decoding an Audio Signal
First Claim
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1. A method of decoding an audio signal, comprising:
- extracting side information embedded in the audio signal by an insertion frame unit wherein an insertion frame length is defined per a frame; and
decoding the audio signal using the side information.
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Abstract
An apparatus for encoding and decoding an audio signal and method thereof are disclosed, by which compatibility with a player of a general mono or stereo audio signal can be provided in coding an audio signal and by which spatial information for a multi-channel audio signal can be stored or transmitted without a presence of an auxiliary data area. The present invention includes extracting side information embedded in non-recognizable component of audio signal components and decoding the audio signal using the extracted side information.
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Citations
25 Claims
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1. A method of decoding an audio signal, comprising:
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extracting side information embedded in the audio signal by an insertion frame unit wherein an insertion frame length is defined per a frame; and decoding the audio signal using the side information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 15)
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10. (canceled)
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11. (canceled)
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12. (canceled)
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16. An apparatus for decoding an audio signal, comprising:
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an embedded signal decoding unit decoding the audio signal and extracting side information embedded in the audio signal by an insertion frame; a multi-channel generating unit generating multi-channel audio signal using the decoded audio signal and the decoded side information, wherein length of the insertion frame is defined per a frame. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of encoding an audio signal, comprising:
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generating side information necessary for decoding an audio signal; and embedding the generated side information in the audio signal by an insertion frame unit, wherein an insertion frame length is defined per a frame.
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23. An apparatus for encoding an audio signal, comprising:
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an audio signal generating unit generating downmixed audio signal from multi-channel audio signal; a side information generating unit generating side information from the multi-channel audio signal; a side information encoding unit encoding the generated side information; and an embedding unit embedding the side information in the audio signal by an insertion frame length defined per a frame.
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24. (canceled)
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25. (canceled)
Specification