DECODING METHOD AND DECODING APPARATUS THEREFOR
First Claim
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1. A method of generating synthesis audio signals, the method comprising:
- decoding a bitstream;
splitting the decoded bitstream into n sub-band signals;
generating n transformed sub-band signals by transforming the n sub-band signals in a frequency domain; and
generating synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients.
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Abstract
A method and apparatus for generating synthesis audio signals are provided. The method includes decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n transformed sub-band signals by transforming the n sub-band signals in a frequency domain; and generating synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients.
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20 Claims
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1. A method of generating synthesis audio signals, the method comprising:
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decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n transformed sub-band signals by transforming the n sub-band signals in a frequency domain; and generating synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A decoding apparatus comprising:
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a decoding core unit which decodes a bitstream and splits the decoded bitstream into n sub-band signals; and a synthesis unit that generates n transformed sub-band signals by transforming the n sub-band signals in a frequency domain, and generates synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method of generating a synthesis audio signal, the method comprising:
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decoding a bitstream into at least one channel; extracting synthesis filter bank coefficients from the bitstream; and for a channel of the at least one channel; splitting the channel into n sub-band signals; transforming a sub-band signal of the n sub-band signals into the frequency domain; calculating, for the transformed sub-band signal, a value based on the extracted synthesis filter bank coefficients; and multiplying the transformed sub-band signal by the calculated value to generate a synthesis audio signal.
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Specification