Stage | Process | Hu–Wang [11] | Zhang–Liu [14] |
---|---|---|---|
Front-end | Signal decomposition | O(CL) | O(CL) |
Envelope Extraction | O(CLlog(L)) | O(CLlog(L)) | |
Correlograms | O(CLD) | Â | |
ZCR | Â | O(CL) | |
Pitch estimation | Segmentation | O(CL/T) | O(CL/T) |
Pitch estimation | O(CL) | O(CL) | |
Unit labeling | Bandpass filtering | O(CLF) | Â |
Comb filtering | Â | O(CL) | |
Separation and synthesis | Â | O(CL) | O(CL) |