Hello Jerry,
Thanks for your feedback.
The crosstalk is ok but can become somehow problematic.
The pickup technology here has an effect. Roland guitar like the LGXT
embeds hexaphonic piezo pickups. You'll have of course sympathetic
vibrations that will happen but also some harmonics that are transferred
through the bridge, no matter how much you mute the strings you don't want
to hear.
So it becomes problematic when mixing high gain distortion with delay for
exemple. If you have distortion on the low E and delay on the high e for
example, you might hear some resonances due to the delay even if you don't
play the high e.
My acoustical knowledge is pretty limited, so this remark is only the
result of experiments.
When it's only distortion, there's no problem, but when you're adding other
effects, yeah that need to be taken into account. Do you have any links on
the technique you mention to erase the crosstalk. Even if I understand the
logic I've never used such a thing.
Are you talking about the hexfuzz demo on soundcloud ?
As for the setup, I'm using a homemade preamp with § adjustable gains, RME
Fireface, Laptop.
The standalone hardware porting is in process right now.
If you have further questions maybe we should continue off-list as it's not
Faust specific ?
Cheers,
Loïc
Le dim. 6 déc. 2020 à 04:45, <list_em...@icloud.com> a écrit :
>
> On Nov 2, 2020, at 3:15 AM, Loïc Reboursiere <loicreboursi...@gmail.com>
> wrote:
>
> Hi,
>
> I'm working on hexaphonic guitar (electrified guitar with an hexaphonic
> pickup, i.e, one pickup per string) and hexaphonic effects.
> By following one of the Faust lockdown webinar I manage to get an
> hexaphonic delay with the following code :
> bounce(d) = @(vslider("delay %d[style:knob]", 4410, 0, 44100, 441)) :
> *(vslider("feedback %d[style:knob]", 0.1, 0, 1, 0.01));
> monoecho(d) = +~bounce(d);
> multiecho(N) = hgroup("hexdelay", par(i, N, monoecho(i)));
>
> process = multiecho(6);
>
> I'd like to embed the GUI in an HTML website, but when I try to export it
> in any of the available web formats and launch the generated HTML file,
> nothing appears except for the block size (I guess) menu. I've tried on
> different browsers but nothing changes. I've also tried with Faust examples
> and it doesn't work either.
>
> What am I missing ? Does it have to do with the "poly voices" option ? Or
> is it be being a newbie to javascript and how to test javascript code ?
>
> Thanks for your answers,
>
>
> Loïc:
>
> I just saw this post of yours and my questions are off-topic.
>
> I have been thinking for a long time of trying a hexaphonic pickup on a
> guitar and using something like Faust to process the outputs. One area that
> interests me is eliminating the intermodulation distortion between strings
> when using a nonlinear effect so that non-major chords played through a
> fuzz-type device don’t turn into nasty near-white noise.
>
> So the obvious question is: what is the crosstalk between the six
> channels, or put in more audio-like terms, what is the channel separation
> between the six? Also, is the pickup linear? If the pickup is linear then
> the crosstalk could be described by a symmetric 6x6 matrix of transfer
> functions with ones on the diagonal and it would be possible to build a
> crosstalk canceller to reduce the crosstalk if it is too high.
>
> I listened to your HexFuzz demo and if I am interpreting what I hear
> correctly the channel separation is pretty good since it seems that each
> string’s fuzz distortion does not mix much with the other strings. The
> effect that I hear is awesome!
>
> Also, what do you use for a sound card or external digitizer? Do you use a
> computer or have you ported to standalone hardware?
>
> Thanks for any comments at all.
>
> Jerry
>
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http://soundcloud.com/MedicationTime
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