Messages

121

preenfm2 and preenfm3 / Re: global fx attempt

« on: September 02, 2021, 09:58:23 PM »

here is a version with complete reverb parameters, for preset design ( sorry for that, there were 3 missing parameters ) + reverb main level adjustment.

122

preenfm2 and preenfm3 / Re: global fx attempt

« on: August 31, 2021, 10:57:49 PM »

Thank you Xavier.

There is a problem with code structure : the FxBus class is not in the right place, there is some refactoring to be done...

123

preenfm2 and preenfm3 / Re: global fx attempt

« on: August 31, 2021, 08:13:44 AM »

i did improve the reverb headroom with different kind of hp&lp filters, same as made by Valley audio, i think it's ok now (attached file).
@matrix12x, sorry for the feature request, i think i will let it as it is, my attempt for shimmer effect was not very convicing.
But if you wish, don't hesitate to set a reverb preset while all parameters are there, i would add yours to the list.

Last step is to allow saving the reverb parameters in the mixer file format, but i have troubles making it work...

124

preenfm2 and preenfm3 / Re: global fx attempt

« on: August 19, 2021, 11:49:33 PM »

it has some flaws, i fear ; the reverb saturate too easily (depending on the sound used).
i'm working on this issue, but with not much luck so far.

125

preenfm2 and preenfm3 / Re: global fx attempt

« on: August 18, 2021, 09:05:58 PM »

it does not matter anymore : i added two more parameters on the Master fx 2 page 

this page is not supposed to live forever anyway : it's only to allow making presets easier.

Here is another .bin with a different set of parameters for the presets, the main parameters (Master fx 1 page) now are :

Preset
        Group of parameters :
            Size
            Lfo speed
            Lfo Depth
            Decay
            Diffusion
            Notch Base
            Damping
    Pre delay
        Time of pre delay
    Pre delay Mix
        the input diffuser is fed with a mix of audio input and pre delayed input.
    Filter Base
        Input filter hp/lp
    Filter Width
    Notch Spread
        Input is filtered with a 4 pole allpass filter

I hope it's a more useful combination

126

preenfm2 and preenfm3 / Re: Scala files dont occupy full keyrange - dont think its Continu/Keybrd setting

« on: August 05, 2021, 12:09:09 PM »

hi -CALC- ,
that's good news !

though, the .scl from your original post seems correct ; this file has UNIX line breaks style (no CR), but this should be fine 

for reference, here is the file format description : http://www.huygens-fokker.org/scala/scl_format.html

127

preenfm2 and preenfm3 / Re: Scala files dont occupy full keyrange - dont think its Continu/Keybrd setting

« on: August 04, 2021, 12:42:15 PM »

hi,
i came across this problem lately.
If I'm not mistaken, it seems that scala files using ratio format have this behaviour, the ones with cents format do work well.

I'm far from a preenfm right now so i can't investigate more.

Thanks for the Leimma tool link, it is a very nice tool !
Another tool of same kind is the scaleworkshop from Sevish : https://sevish.com/scaleworkshop/

you may try this tool to convert ratio to cents, and see if it work better :
http://www.sengpielaudio.com/calculator-centsratio.htm

128

preenfm2 and preenfm3 / Re: global fx attempt

« on: July 12, 2021, 11:22:56 PM »

  Thanks!

129

preenfm2 and preenfm3 / Re: global fx attempt

« on: July 12, 2021, 09:48:07 PM »

Here it is !

- Most of the bugs are gone (should be)
- Auto bypass of most of the reverb code when there is no send set and the reverb tail is over (if any).

- One parameter page :
* Preset select
* Input Tilt
* Pre delay
* Pre delay Mix
* Mod Speed
* Mod Depth

For now there is still a second page to handle the preset parameters if one want to make new preset.
        * Size
        * Diffusion
        * Damping
        * Decay

The current list of preset go from extra small to extra large volumes, each in dark, warm and bright version, and then some more..

130

preenfm2 and preenfm3 / Re: global fx attempt

« on: July 09, 2021, 07:47:04 AM »

hello,
ok, i will try my best to keep only 6 parameters.
Maybe with some kind of presets or something.

131

preenfm2 and preenfm3 / Re: global fx attempt

« on: June 28, 2021, 10:24:53 PM »

  happy to hear you like it too !

the Dattoro Reverb blocks are :

input > lp & hp > pre delay > input diffuser > reverb tank ( (allpass>delay>lp>allpass>delay) > (allpass>delay>allpass>delay) ) > output from various point in the tank


Global page 3 : Master Fx 1

    Pre delay : Time of pre delay
    Pre delay Mix : the input diffuser is fed with a mix of audio input and the pre delayed input.
    Diffusion : set the input & tank diffuser allpass coefficient
    Decay : tank feedback
    Size : size of the tank delay
    Damping : cut off of the tank lowpass

Global page 4 : Master Fx 2

    Mod Speed : lfo speed (4 of them)
    Mod Depth : lfo mod depth, modulate the 4 delay allpass in the tank
    Env Mod : envelope mod depth, make the tail pitch shifting up or down
    Threshold : audio level at which envelope trigger
    Input Tilt : input filter from lowpass ~0 to high pass ~1
    Env Feedback : feedback (decay) modulation with the envelope

the envelope release rate is relative to the decay param.

About the envelope, there is an annoying glitch while in the envelope attack phase, i will try to find a workaround for it..

132

preenfm2 and preenfm3 / Re: global fx attempt

« on: June 28, 2021, 08:23:15 PM »

@Xavier, you were right,  there were a nasty bug in one of the allpass filters which did distord in an ugly way
sorry for that, i had some serious earing fatigue 

fortunately, it's fixed now :
the reverbaration is much clearer and sound quite close to the vst
the decay is also much longer.

133

preenfm2 and preenfm3 / Re: global fx attempt

« on: June 27, 2021, 04:16:11 PM »

here is a version with the output level of the reverb a bit lower, as it could clip sometimes..
There is also different interpolation in this one : i could finaly find the allpass interpolation formula in the part2 of the Dattoro paper !
https://ccrma.stanford.edu/~dattorro/EffectDesignPart2.pdf

it sounds smoother when modulation is applied.

134

preenfm2 and preenfm3 / Re: global fx attempt

« on: June 27, 2021, 11:40:46 AM »

the previous fl-201 implementation has been melt into the new one.
there is only one left.
It remains in the envelope section though

i updated the readme for the knob overview :
https://github.com/pvig/preenfm3

135

preenfm2 and preenfm3 / Re: global fx attempt

« on: June 25, 2021, 06:56:36 PM »

hello Xavier,
thanks for the kind word ! 

i thought that saturation problem was fixed, i will try to make it better.
i had some troubles getting the levels right in the reverb tank loop.
To solve this issue, i use to lower the timbre volume when saturation happen, but it's not an ideal solution.

It seems i have to learn something more..
Hopefully, there is great help on the internet : there is the valleyaudio Plateau code, which use the same algorithm  :
https://github.com/ValleyAudio/ValleyRackFree/tree/v1.0/src/Plateau
It sound great ! https://valleyaudio.github.io/rack/plateau/