28 Apr
2015
28 Apr
'15
7:25 p.m.
On Tue, 28 Apr 2015 17:10:55 +0200, Gerald wrote:
Hi Ralf,
this works pretty good with my lowpass->rectify->aubio pitch detection.
What I want to work on (once GuitarSynth is ported to DPF) is a
source-filter analysis (see U Zölzer: DAFX) to extract the spectral
envelope (timbre) of the guitar. As Zölzer putts it, it is then
possible to obtain a neutral frequency analysis, that just the
tones/frequencies without their attenuation due to playing technique.
This is done simply by dividing the FFT'd input signal by the envelope.
I think that should be done before the pitch detection. And anyway I
want to convolve/multiply the envelope with the synths (as an option in
the GUI). Then GuitarSynth will really be a guitar synth ;)
Gerald
On 28.04.2015 15:58, Ralf Mardorf wrote:
> A simple example, without or even with compressor, play
>
> g string - fret 3 and slide to fret 5, hold the tone
> d string - fret 3 and slide to fret 5, hammer on and pull off fret 7
I only build your software until now, since I don't had/have time to
test it at the moment.
But I'll test latest pull from git ASAP.
At the moment I only can confirm, that I was able to launch this
versions and they showed up in jackd :):
[rocketmouse@archlinux ~]$ ls -hanG /usr/src/GuitarSynth/build/
total 344K
drwxr-xr-x 2 1000 4.0K Apr 25 19:10 .
drwxr-xr-x 4 1000 4.0K Apr 25 10:29 ..
-rwxr-xr-x 1 1000 77K Apr 18 14:39 GuitarSynth2.0a683c4
-rwxr-xr-x 1 1000 77K Apr 19 19:24 GuitarSynth2.9ee232d
-rwxr-xr-x 1 1000 77K Apr 18 21:06 GuitarSynth2.dcd272d
-rwxr-xr-x 1 1000 77K Apr 25 10:32 GuitarSynth2-ge7356fc
Did you already release a git version that is able to handle polyphony?
My apologies for not testing it. I promise I'll do ASAP.
Your project is cool, very interesting. I don't like to pay for a hex
pickup that needs to be installed to my vintage guitar and that in
addition needs a stand alone synth to convert to MIDI. I would like
some kind of converter that is able to e.g. use my Oberheim
Matrix-1000, without damaging my guitar. The Matrix-1000 has got a
guitar mode! It's one of my best synth, but I try to use it as less as
possible, since if ever a Curtis/CEM chip should get broken, there's no
chance for me to pay for a spare part.
https://en.wikipedia.org/wiki/Doug_Curtis