Re: [LAD] GuitarSynth

2015-04-28 Thread Ralf Mardorf
On Tue, 28 Apr 2015 13:48:54 +0200, Gerald wrote: On 28.04.2015 12:31, Ralf Mardorf wrote: PS: Keep in mind that A440 not necessarily is always true. When you program, please keep in mind, that one day, when your program should be able to do what you want it to do, users should be able to chose

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
I understand. Thanks again Gerald On 28.04.2015 21:09, Chris Cannam wrote: On Tue, Apr 28, 2015, at 05:12 PM, Gerald wrote: By 'crude' do you mean it does the job, but not that well? What I really mean is that it wasn't written for use in a specific application, so it hasn't had any real

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
well the goal is to not that dependent on the frequencies being played, but rather on the timbre/frequency envelope of the instrument. This way not the current tuning would be the serious issue, but the declining quality of the strings over time. Gerald On 28.04.2015 12:31, Ralf Mardorf wrote:

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
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

Re: [LAD] GuitarSynth

2015-04-28 Thread Chris Cannam
On Tue, Apr 28, 2015, at 04:10 PM, Gerald wrote: [...] dividing the FFT'd input signal by the envelope This LADSPA plugin https://code.soundsoftware.ac.uk/projects/preprocess will do a crude job of that, if you want to try it out. It uses a cepstral envelope estimator. Chris

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
Thanks Chris. By 'crude' do you mean it does the job, but not that well? Gerald On 28.04.2015 17:45, Chris Cannam wrote: On Tue, Apr 28, 2015, at 04:10 PM, Gerald wrote: [...] dividing the FFT'd input signal by the envelope This LADSPA plugin

[LAD] GuitarSynth

2015-04-28 Thread Ralf Mardorf
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

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
No problem. I wish I had polyphony!! It's only monophone since i'm not an expert on the matter. Right now i'm converting it into a lv2 plugin (actually lv2,vst, au by virtue of falktx's DPF). I have no idea when and how (well not quite how) i'll achieve polyphony, probably never. But alot of

Re: [LAD] GuitarSynth

2015-04-28 Thread Chris Cannam
On Tue, Apr 28, 2015, at 05:12 PM, Gerald wrote: By 'crude' do you mean it does the job, but not that well? What I really mean is that it wasn't written for use in a specific application, so it hasn't had any real testing or evaluation. The purpose of it is to be a handy tool that you can use

Re: [LAD] GuitarSynth

2015-04-28 Thread Ralf Mardorf
PS: Keep in mind that A440 not necessarily is always true. When you program, please keep in mind, that one day, when your program should be able to do what you want it to do, users should be able to chose the pitch for non-standard A in decimal place steps.

Re: [LAD] GuitarSynth

2015-04-28 Thread Ralf Mardorf
On Tue, 28 Apr 2015 01:55:04 +0100, Harry van Haaren wrote: On Tue, Apr 28, 2015 at 12:57 AM, Tim E. Real termt...@rogers.com wrote: The effect is striking. You can hear it without even plugging the guitar in. As you adjust the pickup ever higher, and pluck the strings, you can hear the

Re: [LAD] GuitarSynth

2015-04-28 Thread Gerald
Interesting note, you must have ears if you can hear the overtones that clear without amplification. It also depends on the guitar body itself? A solid body (loke LP) would behave different than a strat? Gerald On 28.04.2015 02:55, Harry van Haaren wrote: On Tue, Apr 28, 2015 at 12:57 AM, Tim E.