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Re: [Rakarrack-users] Compiling Rakarrack on Gentoo

[Josep A. <ho...@te...>]

Hi

I remember when someone was say something like that:  "The only people that understand autotools is the people who made autotools" :-)

In fact is ... more or less easy .... you need to write a "configure.in" or "configure.ac" file with some directives about the program version, language of the source, compiler ....  and also you can use directives to check programs or libs. Also you need to write the "Makefile.am" file for each directory, in this files you need to put the names of the source files ... also you can add more things for example libs for specific sources or other things.

A good way to start is run autoscan ... a program that check the sources and generate a configure.in with the required libs and programs and also adds other directives ... of course you need to read the the docs to understand what do each directive.

Then ... you need to run aclocal, autoheader, autoconf and automake ....  or run autoreconf  that is a script that runs all of the others, that generates the "configure" script and the Makefile.in files .... finally when you run the configure script the final "Makefiles" are created.

Speaking about gentoo and FLTK ... I know that you can install on gentoo the 3 available versions of FLTK ...  in other distros that is not possible because FLTK 2.0 is really on development and is not finished and is really unstable, then gentoo in order to coexist this 3 versions probably use different directories for libs.

About compiling rakarrack in gentoo ... maybe the problem is the libfltk.a is not located in the "/usr/lib/" ....  then the way is pass to the configure script the  --libdir=PATH  --includedir=PATH  something like:

./configure --includedir=/usr/lib/fltk-1/ --libdir=/usr/lib/fltk-1/      (all of this in the case that the libfltk.a is located in /usr/lib/fltk-1/) but sorry I'm not sure about this, all the autotools things need to be checked :-)))


Josep




-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] Compiling Rakarrack on Gentoo

[Josep A. <ho...@te...>]

Hi

I investigate a little bit more,  seems that the configure fails when try to locate the FLTK ....  this error is provided by the aclocal scripts that check the FLTK installation,  they are two checks the first one check for the program fltk-config ... and the second one check for the fltk libs, I think fails on the second one ... 

Also I made some small changes in some sources to unify the PATH of the includes ....  normal installations also create a Fl link to the FL directory to maintain old fltk version compatibility ...

Unfortunatelly I dont have gentoo here to check it ...  I use Debian ... but if you use the git source .... you can try to comment with a # in the begin of the lines 133-136 in the "configure.in" file ..   that avoid the FLTK lib check ...  then you will need to run autogen.sh etc etc


Josep



-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] Compiling Rakarrack on Gentoo

[Josep A. <ho...@te...>]

Hi ...

Unfortunatelly I dont have a gentoo here to check ... but try to run the configure script in that way:

./configure --include=/usr/include/fltk-1/


Josep




-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] Compiling Rakarrack on Gentoo

[Ryan B. <ry...@gm...>]

I can't remember how we worked around this, but I do remember it has 
something to do with Gentoo & derivatives putting the FLTK libs in a 
different place.  Holborn might be able to recall what the work-around was.

The first thing I think is this:  The configure script looks for 
fltk-config.  The reference to this is found in configure.in.

If you can't execute "fltk-config" from the command line, then there is 
the first part of your problem.  This is where it looks like configure 
is failing.  Fixing that is no guarantee of success, but that will at 
least get you to the point configure doesn't fail with an error that 
fltk is not installed.  Then I don't know whether that will fix it, 
because if things are not located in default directories that fltk 
likes, then there may be more issues further down the road with linking 
the fltk libs.  I venture to guess it all depends how intelligently 
fltk-config configures the fltk part of things.  Anyway, you can either 
update your $PATH variable to include the directory where fltk-config is 
located, or make a link to it from a directory that is already in $PATH 
so it can be invoked simply by $fltk-config on the command prompt.

Unfortunately I don't have a gentoo or Sabayon installation to play 
with, so it isn't easy to come up with a modification to the configure 
script that is Gentoo-friendly.  You may try also asking whoever builds 
the FLTK packages for Gentoo.  It is also likely whoever maintains 
Rakarrack in Gentoo may be able to help too.

Well, I know I didn't give you the best answer :(  Unfortunately I don't 
have time right now to really investigate this... but maybe Holborn will 
put in his ideas.  He understands the configuring, compiling, & linking 
aspects of Rakarrack better than I do :)

On 04/18/2011 06:47 PM, Damien Moody wrote:
> Hey there,
>
> Some of us on Gentoo are having trouble compiling Rakarrack because
> configure is telling us that fltk cannot be found despite the fact that
> we do in fact have fltk installed. I was wondering if someone could help
> me figure out why and how to get over this hurdle.
>
> Thanks!
> Damien
>
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[Rakarrack-users] Compiling Rakarrack on Gentoo

[Damien M. <da...@au...>]

Hey there,

Some of us on Gentoo are having trouble compiling Rakarrack because 
configure is telling us that fltk cannot be found despite the fact that 
we do in fact have fltk installed. I was wondering if someone could help 
me figure out why and how to get over this hurdle.

Thanks!
Damien

[Rakarrack-users] mutromojo M and H switchs

[Renato <re...@gm...>]

Hello, just noticed that in the MutroMojo, next to the filter sliders,
are two switches, "M" and "H" that do something on the frequency
response, but are not mentioned in the help (neither my local one nor
the online one)

what do they do?

cheers
renato

Re: [Rakarrack-users] multiplying signal by external synth

[Renato <re...@gm...>]

On Fri, 18 Feb 2011 14:53:58 +0100
Renato <re...@gm...> wrote:

> what I was thinking was using the midi converter to control a sampler
> that gets multiplied with the original incoming signal... I think the
> sound palette would immediately open up to endless and
> intersting combinations..

I was thinking again about this today and thought, would it be
theoretically possible to convolve the input signal with another
external signal (for example a synth or voice) instead of multiplying it
or freq-enveloping it (vocoder)? does this make sense and would the
results be potentially [more] interesting?

If I understand correctly convolution is not an instantaneous process,
so you would have to convolve say the last 100 samples of the two
signals introducing some latency...?

cheers
renato

Re: [Rakarrack-users] multiplying signal by external synth

[Renato <re...@gm...>]

On Fri, 18 Feb 2011 07:32:29 -0900
Ryan Billing <ry...@gm...> wrote:

> Renato,
> The Vocoder does not do plain multiplication.  It performs envelope
> tracking on several frequency bands of the modulator (aux) and
> applies that envelope to the corresponding band on the carrier (input
> signal).  In that way it acts as an adaptive Equalizer that changes
> according to the spectrum of the modulation (aux) signal.

I see, interesting. 

> We can probably add a checkbox mode to Ring so you can use an external
> source from aux instead of the hard-coded oscillators.

that would be cool :)

cheers
renato

Re: [Rakarrack-users] multiplying signal by external synth

[Ryan B. <ry...@gm...>]

Renato,
The Vocoder does not do plain multiplication.  It performs envelope tracking
on several frequency bands of the modulator (aux) and applies that envelope
to the corresponding band on the carrier (input signal).  In that way it
acts as an adaptive Equalizer that changes according to the spectrum of the
modulation (aux) signal.

We can probably add a checkbox mode to Ring so you can use an external
source from aux instead of the hard-coded oscillators.

Take care,
Transmogrifox

On Fri, Feb 18, 2011 at 4:53 AM, Renato <re...@gm...> wrote:

> Hello, I was wondering, if I get it right the Ring multiplies the
> incoming signal by a symple synth like sawtooth, sine etc. and the
> Vocoder multiplies the incoming signal by the signal given on the Aux
> port (not really sure about this), so it could be possible to multiply
> the incoming signal by some complex synth, sampler or whatever connected
> on the Aux port using the Vocoder effect?
>
> what I was thinking was using the midi converter to control a sampler
> that gets multiplied with the original incoming signal... I think the
> sound palette would immediately open up to endless and
> intersting combinations..
>
> cheers
> renato
>
>
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[Rakarrack-users] multiplying signal by external synth

[Renato <re...@gm...>]

Hello, I was wondering, if I get it right the Ring multiplies the
incoming signal by a symple synth like sawtooth, sine etc. and the
Vocoder multiplies the incoming signal by the signal given on the Aux
port (not really sure about this), so it could be possible to multiply
the incoming signal by some complex synth, sampler or whatever connected
on the Aux port using the Vocoder effect?

what I was thinking was using the midi converter to control a sampler
that gets multiplied with the original incoming signal... I think the
sound palette would immediately open up to endless and
intersting combinations..

cheers
renato

Re: [Rakarrack-users] stereo out

[Renato <re...@gm...>]

On Sun, 26 Dec 2010 09:53:40 -0900
Ryan Billing <ry...@gm...> wrote:

> It always processes each stereo channel separately.   Think of it as
> two separate effects processors that interact together. If in jack
> you connect your guitar to both input channels, then it outputs the
> signal on both L and R.  This is how you should be connecting a mono
> instrument to Rakarrack.

Thanks :) I had actually allways done so, yesterday I started seeing
(or better hearing) only left output and couldn't figure out why.

Are the two channels really independent? I mean, if I don't use
effects that mix up the two channels, could I input two completely
different signals and have L come out from L and R from R, both having
been processed by the current rkr preset but in parallel, without
interfering with each other?

As another side note, would it be possible to run rkr in "mono" (1
input and 1 output) - would that halve CPU usage?

cheers
renato

Re: [Rakarrack-users] stereo out

[Ryan B. <ry...@gm...>]

It always processes each stereo channel separately.   Think of it as two 
separate effects processors that interact together. If in jack you 
connect your guitar to both input channels, then it outputs the signal 
on both L and R.  This is how you should be connecting a mono instrument 
to Rakarrack.

There is no internal "switch" to detect mono input.  You have to connect 
L & R inputs to a mono source if this is what you want.

Renato wrote:
> Hello, is it possible for rakarrack to output the signal on both L and
> R channels even when there are no stereo effects or the effects are
> turned off by the upper left button?
>
> renato
>
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[Rakarrack-users] stereo out

[Renato <re...@gm...>]

Hello, is it possible for rakarrack to output the signal on both L and
R channels even when there are no stereo effects or the effects are
turned off by the upper left button?

renato

[Rakarrack-users] rakarrack-0.6.1 is released

[Josep A. <ho...@te...>]

Hi

Hi

We have the pleasure to announce the release of rakarrack 0.6.1

Rakarrack is a richly featured multi-effects processor emulating a guitar effects pedalboard. Effects include compressor, expander, noise gate, graphic equalizer, parametric equalizer, exciter, shuffle, convolotron, valve, flanger, dual flange, chorus, musicaldelay, arpie, echo with reverse playback, musical delay, reverb, digital phaser, analogic phaser, synthfilter, varyband, ring, wah-wah, alien-wah, mutromojo, harmonizer, looper and four flexible distortion modules including sub-octave modulation and dirty octave up. Most of the effects engine is built from modules found in the excellent software synthesizer ZynAddSubFX. Presets and user interface are optimized for guitar, but Rakarrack processes signals in stereo while it does not apply internal band-limiting filtering, and thus is well suited to all musical instruments and vocals. Rakarrack is designed for Linux distributions with Jack Audio Connection Kit.

New Effects:
------------------------------------------------------------
- OpticalTrem	:	Tremolo
- Vibe		:	Vibe 
- CompBand	: 	Four Band Compressor
- StereoHarm	:	Stereo Harmonizer

New LFO types:
-------------------------------------------------------------
- Sample & Hold
- Lorentz Fractal XY

New Additions:
-------------------------------------------------------------
- Metronome
- +10 dB booster
- Add/Delete Internal Effect Presets, that can also shared/merged with other users.
- Drag & Drop effects in main screen to fast reorder.
- Fast MIDI learn assign with right click in each parameter. 
- Hide Function for unused effects.
- Random preset generator.
- Drag and Drop presets in bank window to fast swap.
- Extra1 Preset bank.
- User directory, a place to put your preset banks in order to be accessible by a single click.
- Optimized filters and Trigger for recognition note frequency.
- MIDI Program Change Table, that can be save/load.
- Shortcuts.

Improvements:
---------------------------------------------------------------

- Looper, adds metronome and possibility to sync with jack transport and Tap Tempo.
- Compressor (Final Limiter)
- MIDI Converter octave changer.
- Tap Tempo can be set in main screen.
- Speed up the preset change process.
- Upsample x7,x8,x9,x10,x11,x12 (hope you have a fast computer :-))
- RBFilter "Q" modes.
- Effects that depends of internal preset selected (MuTroMojo, WahWah) now display the original internal preset. 

Bug fixes .... and new bugs :-)


Thanks

The rakarrack Team.


-- 
Josep Andreu <ho...@te...>

[Rakarrack-users] rakarrack 0.6.x version will be released soon

[Josep A. <ho...@te...>]

Hi

We have plan to release the next version soon, we only need to fill the new bank with new presets.
If you wanna contribute with some presets please send us.

Josep



-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] some ideas

[Josep A. <ho...@te...>]

Hi :-)
 
> 1 - When I save a bank it allways ask me where... could "Save" just
> overwrite the bank file and the current behaviour be put under "Save
> As" ?

I was think about that :-) .... actually the program remember the last bank saved ..  I think is enough ;-)  also fltk file browser has "favorites"  ... that helps too :-)

 
> 2 - I use MIDI learn. But I can't reassign midi for on/off of effects -
> I can only change the CC number, but not velocities. I mean that if I
> assign say CC 10 to "Multi On/Off", the velocities are still as in the
> implementation chart: 124 FX on/off, 123 tuner and so on.
> 
> So this way I'm unable to use the same button on my pedal to toggle
> effect 1 in preset 10 and effect 2 in preset 11.

 
> The only solution I see is assigning each entry in the implementation
> chart under CC 116 (effect on/off, fx, tuner etc.) to different entries
> in the MIDI learn window, rather than putting them all under "Multi
> On/Off" and be dependant on the hard-coded velocities.

Yes is a solution but ....  that will need a lot of hard changes  ...  
Maybe will be better that you use the toggle On/Off by effect position than 
the On/Off by  individual effect ... if you have 10 buttons you can assign all
 the effects,  if you have less buttons you can Drag and Drop the effects in 
the main window to reorder, then save your bank.

> 3 - An idea I had for some time for enhancing midi control: if i use
> something like a knob or a pedal to control a slider, it would be handy
> if there was the possibility to define the range and the direction... I
> mean: given that the knob allways sends out values from 1 to 127, I
> could tell rakarrack to map 1 to a and 127 to b, where a and b are in
> the range of the slider and *not* necessarily a is smaller than b. For
> example Jack-rack does this.
> One use of this would be to assign a pedal to wet/dry of a distortion
> and to wet/dry of an echo, but with opposite direction; that way when I
> push down the pedal the w/d of distortion goes all to the right while
> the one of the echo goes all to the left, and the sound fades from
> distorted to clean and echoed.

Well ... the MIDI range value for each parameter is implemented but is not available ...
that will be easy to add :-) 

 
> Also it would be handy to be able to choose between linear and
> exponential CC--->slider_value mappings. 

Yes .... that's more complicated ... but is an idea :-)
 

Josep

-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] some ideas

[Renato <re...@gm...>]

On Sun, 24 Oct 2010 16:02:33 +0200
Renato <re...@gm...> wrote:

> Hey rakarrackers! 
> 
> I've got a few usage issues/feature requests. I'm unable to clone git
> ATM so sorry if they've allready been solved.
> 
> 1 - When I save a bank it allways ask me where... could "Save" just
> overwrite the bank file and the current behaviour be put under "Save
> As" ?
> 
> 2 - I use MIDI learn. But I can't reassign midi for on/off of effects
> - I can only change the CC number, but not velocities. I mean that if
> I assign say CC 10 to "Multi On/Off", the velocities are still as in
> the implementation chart: 124 FX on/off, 123 tuner and so on.
> 
> So this way I'm unable to use the same button on my pedal to toggle
> effect 1 in preset 10 and effect 2 in preset 11.
> 
> The only solution I see is assigning each entry in the implementation
> chart under CC 116 (effect on/off, fx, tuner etc.) to different
> entries in the MIDI learn window, rather than putting them all under
> "Multi On/Off" and be dependant on the hard-coded velocities.
> 
> 3 - An idea I had for some time for enhancing midi control: if i use
> something like a knob or a pedal to control a slider, it would be
> handy if there was the possibility to define the range and the
> direction... I mean: given that the knob allways sends out values
> from 1 to 127, I could tell rakarrack to map 1 to a and 127 to b,
> where a and b are in the range of the slider and *not* necessarily a
> is smaller than b. For example Jack-rack does this.
> One use of this would be to assign a pedal to wet/dry of a distortion
> and to wet/dry of an echo, but with opposite direction; that way when
> I push down the pedal the w/d of distortion goes all to the right
> while the one of the echo goes all to the left, and the sound fades
> from distorted to clean and echoed.
> 
> Also it would be handy to be able to choose between linear and
> exponential CC--->slider_value mappings. 
> 
> 
> For the rest, it's allways a pleasure coming back to rakarrack.
> 
> I'm planning on amusing some other musicians with rakarrack next
> month, when we'll have a session on improvising over old mute films
> (something very fun)
> 
> cheers
> renato


Ah! I see Note Off for the MIDI converter has ben implemented! great,
finally I can play Pads ;)

Now what would be great is a "sustain" button that, when turned on,
retains rakarrack from sending Note Off events until it's released.

cheers
renato

[Rakarrack-users] some ideas

[Renato <re...@gm...>]

Hey rakarrackers! 

I've got a few usage issues/feature requests. I'm unable to clone git
ATM so sorry if they've allready been solved.

1 - When I save a bank it allways ask me where... could "Save" just
overwrite the bank file and the current behaviour be put under "Save
As" ?

2 - I use MIDI learn. But I can't reassign midi for on/off of effects -
I can only change the CC number, but not velocities. I mean that if I
assign say CC 10 to "Multi On/Off", the velocities are still as in the
implementation chart: 124 FX on/off, 123 tuner and so on.

So this way I'm unable to use the same button on my pedal to toggle
effect 1 in preset 10 and effect 2 in preset 11.

The only solution I see is assigning each entry in the implementation
chart under CC 116 (effect on/off, fx, tuner etc.) to different entries
in the MIDI learn window, rather than putting them all under "Multi
On/Off" and be dependant on the hard-coded velocities.

3 - An idea I had for some time for enhancing midi control: if i use
something like a knob or a pedal to control a slider, it would be handy
if there was the possibility to define the range and the direction... I
mean: given that the knob allways sends out values from 1 to 127, I
could tell rakarrack to map 1 to a and 127 to b, where a and b are in
the range of the slider and *not* necessarily a is smaller than b. For
example Jack-rack does this.
One use of this would be to assign a pedal to wet/dry of a distortion
and to wet/dry of an echo, but with opposite direction; that way when I
push down the pedal the w/d of distortion goes all to the right while
the one of the echo goes all to the left, and the sound fades from
distorted to clean and echoed.

Also it would be handy to be able to choose between linear and
exponential CC--->slider_value mappings. 


For the rest, it's allways a pleasure coming back to rakarrack.

I'm planning on amusing some other musicians with rakarrack next
month, when we'll have a session on improvising over old mute films
(something very fun)

cheers
renato

Re: [Rakarrack-users] [feature request] E-Violin support

[Ryan B. <ry...@gm...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Yes the EQ has resonant filters.&nbsp; The "Q" value will allow you to
adjust to a high level of resonance.&nbsp; Parametric EQ also has resonant
filters.&nbsp; It is only 3 bands, but then you can adjust resonance and
frequency on each individual band.&nbsp; Maybe that would be more useful.<br>
<br>
The thing you cannot do with the EQ is adjust resonance for each band,
nor can you move the frequency bands.&nbsp; If you increase Q, then all
bands get resonant, then the EQ becomes a comb filter...this is not
what you want...not for emulating a violin body.&nbsp; Maybe you would want
a fixed comb filter for something else.<br>
<br>
If you want to experiment, the Echotron is a good place to start with
EQ's.&nbsp; I will push my 32-band EQ echotron file to the sources.&nbsp; Then
you can copy &amp; edit to adjust center frequencies and resonance.&nbsp;
Look at the Help for instructions to edit and load a .dly file :)<br>
<br>
It is good your E-violin does not add much resonance.&nbsp; If I can find a
good impulse response .wav file for a wood violin, this is all you will
need, and one can ignore the deconvolution removing the effect of your
E-violin.<br>
<br>
My wife reminded me she has a violin so I will see what I can do in the
way of capturing the resonance in it.&nbsp; If you go searching on the
internet, maybe somebody has already measured the impulse response from
a violin body, then you can load that directly into Convolotron.<br>
<br>
I hope that is of some help.<br>
Ryan<br>
<br>
Hanno Behrens wrote:
<blockquote cite="mid:201...@nu..."
 type="cite">
  <pre wrap="">Am Montag, 4. Oktober 2010, um 23:11:05 schrieb Ryan Billing:

  </pre>
  <blockquote type="cite">
    <pre wrap="">The only thing you need in order to do what you want is to make an
impulse response...probably something like GNU Octave could help to
create such an impulse response and here is how:
1) impulse response of electric violin body.
2) impulse response of normal (acoustic) violin body.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
While I actually am not in that I can provide clean sounds of an e-violin and 
real violin. But I never did a convolution and don't know how to. And while I 
can provide a knocking sound on my real violin (I assume the best way is to 
knock it from the point where the strings lie on the corpus, I have no idea 
what to do with the electric violin. 

There are several ways to electrify a violin, some are expensive and 
semiacoustic but because I need a real silent violin I have chosen a pure 
electric variant. That's working over a piezo crystal just under the piece of 
wood that is supporting the strings "Steg" in german. This way is producing a 
very clean sound from the strings without any resonance, which is why many 
conservative violinists do not like this way "it doesn't sound like a violin", 
means has no for violins typical resonance - if they touch e-violins at all,. 
Because they think resonance has to be build in the instrument - which I do 
not share in this case. Resonance can be build well inside of 
electric/algorithmich filters, but I don't need to tell you.

Resonance is working well inside the computer/fx and the swinging of the 
strings is the only input one should need for that if the resonance is well 
designed enough. The sound of the corpus has no importance for the sound input 
I guess. It's more like the different coils from e-guitars. The swinging of the 
strings is very like those on a real violin with -as my ears tell me- mostly 
the same effects and frequency spectrum - besides said resonance.

In fact it's a lot easier to play an eviolin than a real one. I still don't 
know why because unlike e-guitars the violins are basically the same in 
everything but the corpus. And don't get feedback energy by the amplifier that 
produces these specific feedback effects on e-guitars. Feedback from the amp is 
in fact something that is seen as "the enemy" of the e-violin. Because the 
energy for the strings is coming only from the bow. And it's more than enough.

  </pre>
  <blockquote type="cite">
    <pre wrap="">3) de-convolve electric violin response (for example, reverse e-violin
response).
4) The final impulse response will be anti-electric violin convolved
with acoustic violin response.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
These two steps I have no experience how to do that. 

  </pre>
  <blockquote type="cite">
    <pre wrap="">5) Load this IR into Rakarrack and see what happens.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
Also I will need help to do this. 

  </pre>
  <blockquote type="cite">
    <pre wrap="">[...]
About resonant filters:
Look into Echotron.  You can assign up to 32 filter bands in the text
file.  You can't tweak in real time, but if you know what resonances you
want, then you can set all the delays to zero, and assign frequencies &amp;
resonance.  Set HP and LP columns to zero.  That will more or less be a
32-band parametric EQ.
    </pre>
  </blockquote>
  <pre wrap=""><!---->
Thank you, Ryan, I will try that. The EQ has resonant filters? Is that right?

Greetings Hanno

  </pre>
</blockquote>
</body>
</html>

Re: [Rakarrack-users] [feature request] E-Violin support

[Hanno B. <sh...@nu...>]

Am Montag, 4. Oktober 2010, um 23:11:05 schrieb Ryan Billing:

> The only thing you need in order to do what you want is to make an
> impulse response...probably something like GNU Octave could help to
> create such an impulse response and here is how:
> 1) impulse response of electric violin body.
> 2) impulse response of normal (acoustic) violin body.

While I actually am not in that I can provide clean sounds of an e-violin and 
real violin. But I never did a convolution and don't know how to. And while I 
can provide a knocking sound on my real violin (I assume the best way is to 
knock it from the point where the strings lie on the corpus, I have no idea 
what to do with the electric violin. 

There are several ways to electrify a violin, some are expensive and 
semiacoustic but because I need a real silent violin I have chosen a pure 
electric variant. That's working over a piezo crystal just under the piece of 
wood that is supporting the strings "Steg" in german. This way is producing a 
very clean sound from the strings without any resonance, which is why many 
conservative violinists do not like this way "it doesn't sound like a violin", 
means has no for violins typical resonance - if they touch e-violins at all,. 
Because they think resonance has to be build in the instrument - which I do 
not share in this case. Resonance can be build well inside of 
electric/algorithmich filters, but I don't need to tell you.

Resonance is working well inside the computer/fx and the swinging of the 
strings is the only input one should need for that if the resonance is well 
designed enough. The sound of the corpus has no importance for the sound input 
I guess. It's more like the different coils from e-guitars. The swinging of the 
strings is very like those on a real violin with -as my ears tell me- mostly 
the same effects and frequency spectrum - besides said resonance.

In fact it's a lot easier to play an eviolin than a real one. I still don't 
know why because unlike e-guitars the violins are basically the same in 
everything but the corpus. And don't get feedback energy by the amplifier that 
produces these specific feedback effects on e-guitars. Feedback from the amp is 
in fact something that is seen as "the enemy" of the e-violin. Because the 
energy for the strings is coming only from the bow. And it's more than enough.

> 3) de-convolve electric violin response (for example, reverse e-violin
> response).
> 4) The final impulse response will be anti-electric violin convolved
> with acoustic violin response.

These two steps I have no experience how to do that. 

> 5) Load this IR into Rakarrack and see what happens.

Also I will need help to do this. 

> [...]
> About resonant filters:
> Look into Echotron.  You can assign up to 32 filter bands in the text
> file.  You can't tweak in real time, but if you know what resonances you
> want, then you can set all the delays to zero, and assign frequencies &
> resonance.  Set HP and LP columns to zero.  That will more or less be a
> 32-band parametric EQ.

Thank you, Ryan, I will try that. The EQ has resonant filters? Is that right?

Greetings Hanno

Re: [Rakarrack-users] [feature request] E-Violin support

[Ryan B. <ry...@gm...>]

One user asked about using the convolution module for simulating 
different guitars.  One could use it to make an electric guitar sound 
like wood (acoustic).

I would think the same can be done with violins.

The only thing you need in order to do what you want is to make an 
impulse response...probably something like GNU Octave could help to 
create such an impulse response and here is how:
1) impulse response of electric violin body.
2) impulse response of normal (acoustic) violin body.
3) de-convolve electric violin response (for example, reverse e-violin 
response).
4) The final impulse response will be anti-electric violin convolved 
with acoustic violin response.
5) Load this IR into Rakarrack and see what happens. 

To make impulse response measurements you probably have to make a 
recording (in a silent, dead room) of whacking the body of your violins 
(electric and acoustic) with a wood block or rubber coated spoon.  It 
will be hard to get a true IR, but I think the deconvolution will remove 
the common frequency responses (whack on the wood, and anything common 
between the two).

When you have two .wav files, cut them to the same length then use 
software tool of your choice to deconvolve the electric from the acoustic.

Even if you can make good strong wav file recordings and send to me, 
then I can do the processing.  I don't own a violin so I can't make IR's.

About resonant filters:
Look into Echotron.  You can assign up to 32 filter bands in the text 
file.  You can't tweak in real time, but if you know what resonances you 
want, then you can set all the delays to zero, and assign frequencies & 
resonance.  Set HP and LP columns to zero.  That will more or less be a 
32-band parametric EQ.

Take care,
Ryan

Hanno Behrens wrote:
> Hi Folks,
>
> good job by the way.
>
> I'm playing around with Rakarrack since a while, not so much focused on use 
> with E-Guitars but synthesizers and recently with E-Violin. Marvelous tool. 
>
> I'd like to request a feature like in Coil Crafter or a convolution to switch 
> the "voice" of my electric violin and to exchange it with the sound of my real 
> violin. This should be possible in a way. 
>
> The sound of the e-violin is different from a real one but still near enough to 
> change the timbre. 
>
> And while I'm on that how about an resonance filter unit? The resonance filter 
> that you can find in ZynAddSubFX is giving each instrument an unique timbre, 
> something that I find highly useful when I'm playing with synth. But exactly 
> this unique timbre is missing when I try to fiddle on my e-violin. 
>
> Usually there is no violin that sounds like the other. And the reason for this 
> is the very complex resonance curves of their corpus, strings and bowing 
> technic. 
>
> With the convolution addon, I think of something easy to use like in Coil 
> Crafter the sound of the e-violin would be enriched by length. As this would 
> happen with something like a resonance filter.
>
> Most violinists don't use e-violins because of their flat timbre. Which is 
> their main disadvantage and even the effects can't do much about that - missing 
> resonance. At the moment I try to help me out with equalizers and reverb 
> effects but this is not the same. This would change by this. I see forward to 
> this if you happen to implement it very much.
>
> An e-violin with the full rich sound of a real one. That's something no rack 
> in the world can do.
>
> With best regards
>   

[Rakarrack-users] [feature request] E-Violin support

[Hanno B. <sh...@nu...>]

Hi Folks,

good job by the way.

I'm playing around with Rakarrack since a while, not so much focused on use 
with E-Guitars but synthesizers and recently with E-Violin. Marvelous tool. 

I'd like to request a feature like in Coil Crafter or a convolution to switch 
the "voice" of my electric violin and to exchange it with the sound of my real 
violin. This should be possible in a way. 

The sound of the e-violin is different from a real one but still near enough to 
change the timbre. 

And while I'm on that how about an resonance filter unit? The resonance filter 
that you can find in ZynAddSubFX is giving each instrument an unique timbre, 
something that I find highly useful when I'm playing with synth. But exactly 
this unique timbre is missing when I try to fiddle on my e-violin. 

Usually there is no violin that sounds like the other. And the reason for this 
is the very complex resonance curves of their corpus, strings and bowing 
technic. 

With the convolution addon, I think of something easy to use like in Coil 
Crafter the sound of the e-violin would be enriched by length. As this would 
happen with something like a resonance filter.

Most violinists don't use e-violins because of their flat timbre. Which is 
their main disadvantage and even the effects can't do much about that - missing 
resonance. At the moment I try to help me out with equalizers and reverb 
effects but this is not the same. This would change by this. I see forward to 
this if you happen to implement it very much.

An e-violin with the full rich sound of a real one. That's something no rack 
in the world can do.

With best regards
-- 
Ceterum censeo microsoft esse delendam

Re: [Rakarrack-users] feature request: midi converter

[Renato <re...@gm...>]

On Mon, 23 Aug 2010 12:13:09 +0100
Josep Andreu <ho...@te...> wrote:

> 
> Hi
>  
> > Also, is it possible someway to save a preset so that I'll see only
> > used effects *plus* some unused effects? like the Gimp'ed snapshot I
> > posted some mails ago, with the MutroMojo turned on and the Valve
> > turned off.
> 
> Well .... that is possible, yes .. I was think to do it in that
> way .... but that needs a lot of code ..  then I was decided to show
> all when a new effect is selected ..  you can hide again with the
> button easy .. and the state of the hide button is saved in the
> preferences when the program restart.
> 
> Sorry about that ... but we have the rule to dont spend to much code
> on the GUI ,,, because that increase to much the size of the
> program ... we only want to do that for new effects :-)
> 
> 
> Josep
> 

ok, I understand. I also prefer dsp performance in rakarrack rather
than eye-candy ;)

renato

Re: [Rakarrack-users] feature request: midi converter

[Josep A. <ho...@te...>]

Hi
 
> Also, is it possible someway to save a preset so that I'll see only
> used effects *plus* some unused effects? like the Gimp'ed snapshot I
> posted some mails ago, with the MutroMojo turned on and the Valve
> turned off.

Well .... that is possible, yes .. I was think to do it in that way .... but that needs a lot of code ..  then I was decided to show all when a new effect is selected ..  you can hide again with the button easy .. and the state of the hide button is saved in the preferences when the program restart.

Sorry about that ... but we have the rule to dont spend to much code on the GUI ,,, because that increase to much the size of the program ... we only want to do that for new effects :-)


Josep



-- 
Josep Andreu <ho...@te...>

Re: [Rakarrack-users] feature request: midi converter

[Renato <re...@gm...>]

On Wed, 18 Aug 2010 02:35:08 +0100
Josep Andreu <ho...@te...> wrote:

> 
> 
> Hi ..
> 
> About the On button in the Midi learn .... ummhh ... probably I will
> add ...  :-)
> 
> Josep
> 
> 
> 

Cloned git today: MIDI transpose and On button-right-clicking work,
great :) 


Regarding the "Hide unused effects" options in the Prefs, it seems to
work quite good, I'm having just one little problem: when I want to add
an effect (i.e. switching one of the hided ones with a new one, through
"Put order in your rack"), it automatically turns back off, reshowing
all effects.

Also, is it possible someway to save a preset so that I'll see only
used effects *plus* some unused effects? like the Gimp'ed snapshot I
posted some mails ago, with the MutroMojo turned on and the Valve
turned off.

renato