Am 07.11.2018 um 12:32 schrieb gm:
but when I use windowsize = 1/bandwitdhERB I get windows that are too
small for
the phase vocoder, for instance for the lowest band I get
bandwidthERB (~10Hz) ~= 26 Hz bandwidth, ~ 1705 samples window length
This gives too much modulation or too much bandwidth by the window,
even if I double this.
according to a paper you have to scale it to the -3dB witdh of the
window in bins
which is given with 1.44 for Hann, but I found that it works
satisfactorily with a scaling of 2.88
the sources are called On the use of windows for harmonic analysis with
the discrete fourier transform
and A flexible multi-resolution time-frequency analysis framework for
audio signals
if anyone is interested
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