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Improve phase vocoder #23
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Just as an alternative idea to the phase vocoder... DFT magnitude based phase estimation:
However:
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The arctan approximation [3] is still faster than Regarding [1], my current observation is that the sliding vocoder generally produces less artifacts especially if pitching instrumental recordings. So it makes more sense to discover the sliding DFT first instead of obfuscating the vocoder... |
Idea: Use |
The pitch shifting result is comparable to the signalsmith:
where Actually the default signalsmith configuration uses 6144 (3072 without zero padding) DFT bins, which is not power of two. Disabling The comparable stftPitchShift configuration is |
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