One thing I noticed is that it seems to sound better at 22050 Hz sample rate
so I assume 1024 FFT size is too small and you should use 2048.
I dont know if that is because the DC band is too high or if the bins
are too broadband with 1024, or both?
I assume with this and some phase realingment and a better spectral envelope
quality would be somewhat improved.
Unfortunately Reaktor isn't the right tool at all to test these things,
you have to hack around everything,
just changing the FFT size will probably waste a whole day, so I
probably won't investigate this further.
Am 25.10.2018 um 12:17 schrieb gm:
I made a quick test,
original first, then resynthesized with time stretch and pitch shift
and corrected formants:
https://soundcloud.com/traumlos_kalt/ft-resynth-test-1-01/s-7GCLk
https://soundcloud.com/traumlos_kalt/ft-resynth-test-2-01/s-2OJ2H
sounds quite phasey and gurgely
I am using 1024 FFT size and 5 bins moving average to extract a
spectral envelope for formant preservation, which is probably not the
best way to do this
I assume you would need to realign phases at transients
sound quality isn't what you would expect in 2018...
(also I am doing the pitch shift the wrong way at the moment,
first transpose in time domain, then FFT time stretch, cause that was
easier to do for now
but this shouldn't cause an audible problem here)
about latency I dont now yet, I am using my FFT for NI Reaktor which
has a latency of several times FFT size
and is only good for proof of concept stuff
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