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METHOD AND APPARATUS FOR QUADRATURE MIRROR FILTERING CROSS-REFERENCE TO RELATED APPLICATIONS
METHOD AND APPARATUS FOR QUADRATURE MIRROR FILTERING CROSS-REFERENCE TO RELATED APPLICATIONS
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机译:正交镜过滤交叉引用的方法和装置
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摘要
A method of performing quadrature mirror filter (QMF) synthesis filtering includes recording new samples corresponding to a current time slot at positions of samples to be discarded in a first array that includes modulated QMF sub-band samples. The method further includes extracting samples from the first array to remove aliasing between adjacent sub-bands, determining filter coefficients corresponding to the extracted samples by using modulo operation, and synthesizing a time domain sample where aliasing is removed by using the extracted samples and the filter coefficients.
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