FIELD: physics.
SUBSTANCE: audio decoder includes: an arithmetic decoder for providing a plurality of decoded spectral values based on an arithmetic coded representation of the spectral values contained in the coded audio information and a frequency domain converter to the time domain for providing a time domain audio representation using the decoded spectral values in order to obtain decoded audio information; wherein the arithmetic decoder is configured to select a mapping rule describing the display of the code value of the arithmetic coded representation of the spectral values to the symbol code; to determine the numerical value of the current context; and to modify the numerical representation of the previous context numerical value, depending on the value of the context subband, in order to obtain a numerical representation of the current context numerical value.
EFFECT: providing an improved compromise between the bit rate efficiency and the resource use efficiency.
20 cl, 67 dwg
Title |
Year |
Author |
Number |
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2011 |
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- Varmbold Patrik
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|
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2011 |
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2009 |
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