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US 2012/0259645 A1Published application
Method and apparatus for encoding audio data
AssigneeIntel Corporation
InventorsDmitry N. Budnikov, Igor V. Chikalov, Sergey N. Zheltov
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Abstract
A method for processing audio data includes determining a first common scalefactor value for representing quantized audio data in a frame. A second common scalefactor value is determined for representing the quantized audio data in the frame. A line equation common scalefactor value is determined from the first and second common scalefactor values.
Claims20
An audio encoder circuit, comprising:
- a scaler/quantizer unit to determine a first common scalefactor value for representing quantized audio data in a frame, a second common scalefactor value for representing the quantized audio data in the frame, and a line equation common scalefactor value from the first and second common scalefactor values.
A method for processing audio data, comprising:
- determining a first common scalefactor value for representing quantized audio data in a frame;
- determining a second common scalefactor value for representing the quantized audio data in the frame;
- and
- determining a line equation common scalefactor value from the first and second common scalefactor values, wherein at least one of the determinings is performed by a processor.
1 more element
A method for processing audio data, comprising:
- determining a first common scalefactor value for representing quantized audio data in a first frame;
- determining a second common scalefactor value for representing quantized audio data in a second frame;
- quantizing modified discrete cosine transform (MDCT) coefficients with a common scalefactor value having a value of the first common scalefactor value determined for the first frame;
- determining a number of bits required for representing the quantized MDCT coefficients and the common scalefactor value;
- and
- modifying the common scalefactor value and re-quantizing the MDCT coefficients with the modified common scalefactor if the number of bits required exceeds an available number of bits, wherein at least one of the determinings, quantizing, and modifying procedures is performed by a processor.
3 more elements
Dependencies are inferred from the claim text.