Am 25.10.2018 um 12:17 schrieb gm:
(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)
Now I think that flaw is actually the way to go
the same sample as before, rearranged and sequenced, transposed
sound quality and latency aside, I think the idea has some potential
https://soundcloud.com/traumlos_kalt/spectromat-test-4-01/s-7W2tR
the second part is from Nancy Sinatras Summervine
I am sorry it's all drenched in a resonant
here an example at 22050 hz sample rate, FFT size 1024, smoothing for
the spectral envelope 10 bins,
and simple phase realignment: when amplitude is greater than last frames
amplitude
phase is set to original phase, otherwise to the accumulated phase of
the time stretch
didn't expect
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
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
We did FFT noise synthesis for a participatory performance project "Open
Band",
you can read about it on this paper:
https://qmro.qmul.ac.uk/xmlui/bitstream/handle/123456789/26169/13.pdf?sequence=1
the idea was to crate blocks of noise based on pre-determined frequencies
to draw letters on the
I haven't thought through the details for any particular application, but
the chirp z-transform might be a useful trick to keep in mind for these
sorts of things. It lets you calculate an IFFT with an arbitrary spacing
between bins, or even an arbitrary fundamental in case you want to detune
the
Am 24.10.2018 um 02:48 schrieb gm:
two demo tracks
https://soundcloud.com/transmortal/the-way-you-were-fake
https://soundcloud.com/traumlos-kalt/the-way-we-were-iii
they are mostly made from a snippet of Nancy Sinatras Fridays Child
I just realize in case s.o. is really interested, I have
Am 24.10.2018 um 02:24 schrieb gm:
Am 24.10.2018 um 00:46 schrieb robert bristow-johnson:
> Does anybody know a real world product that uses FFT for sound
synthesis?
> Do you think its feasable and makes sense?
so this first question is about synthesis, not modification for
effects,
Am 24.10.2018 um 02:12 schrieb gm:
Am 24.10.2018 um 00:38 schrieb David Olofson:
Simple demo song + some comments here:
https://soundcloud.com/david-olofson/eelsynth-ifft-flutesong
sounds quite nice actually
___
dupswapdrop: music-dsp mailing
The Kurzweil K150 is the first product I can think of that did it. To
create custom sounds for it required the use of software that modeled the
sound using partial amplitudes over time. It's a very powerful technique
for synthesising certain types of sound, such as a piano, where frequencies
of
Original Message
Subject: [music-dsp] FFT for realtime synthesis?
From: "gm"
Date: Tue, October 23, 2018 5:51 pm
To: music-dsp@music.co
On Wed, Oct 24, 2018 at 12:14 AM gm wrote:
> Am 23.10.2018 um 23:51 schrieb gm:
[...]
> I think I should add that I want to use it on polyphonic material or any
> source material
> so sinu oscillators are probably not the way to go cuase you would need
> too many of them
Sine oscillators can be
On Tue, Oct 23, 2018 at 11:51 PM gm wrote:
>
> Does anybody know a real world product that uses FFT for sound synthesis?
I believe AIR Loom does, and I suspect some wavetable synths use FFT
as well; Waves Codex and DS Audio Thorn comes to mind. (Mentions of
"spectral synthesis," and there's also
Am 23.10.2018 um 23:51 schrieb gm:
An advantage of using FFT instead of sinusoids would be that you dont
have to worry
about partial trajectories, residual noise components and that sort of
thing.
I think I should add that I want to use it on polyphonic material or any
source material
so
Does anybody know a real world product that uses FFT for sound synthesis?
Do you think its feasable and makes sense?
Totally unrelated to the recent discussion here I consider replacing (WS)OLA
granular "clouds" with a spectral synthesis and was wondering if I
should use FFT for that.
I want
16 matches
Mail list logo
