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Nonuniform oversampled filter banks for audio signal processing
Nonuniform oversampled filter banks for audio signal processing
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机译:非均匀过采样滤波器组,用于音频信号处理
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摘要
A non-uniform filter bank is created by joining sections of oversampled uniform filter bands that are based on complex exponential modulation (as opposed to cosine modulation). Each filter bank handles a given, non-overlapping frequency band. The bands are not of uniform bandwidth, and the filters of different banks have different bandwidths. The frequency bands of the different filter banks cover the frequency of interest with gaps in the neighborhoods of the filter band edges. A set of transition filters fills those gaps.
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