now I remember there was a paper by Miller Pucket (I believe) about
this, dont know what it is called.
It works quite well when you lowpass the input adaptively with the
detected pitch
and also lowpass the detected pitch.
I used ~30 Hz and SVFs for lowpassing and its ok-ish.
This makes me wonder if you can use a simpler pseudo Hilbert transform
that only shifts phases around the
frequency range your looking at since the rest of the spectrum is discarded.
But I am not sure how to set up the allpass filters, maybe its
sufficient to use a single allpass then.
Am 07.02.2017 um 18:31 schrieb STEFFAN DIEDRICHSEN:
You can use the phase directly as a sawtooth oscillator. It sounds
like a weird tracking oscillator from back in the days, but it’s
surprising, how musical the artefacts are.
Steffan
On 07.02.2017|KW6, at 17:34, robert bristow-johnson
<r...@audioimagination.com <mailto:r...@audioimagination.com>> wrote:
using this Hilbert, analytic signal thing for frequency detection
works only for pure sinusoids (that are amplitude-modulated and/or
frequency-modulated). it's really unpredictable (i may be wrong,
someone might have math that predicts) what the instantaneous phase
coming out of this is for a complex signal going in.
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