Update: 2024-09-28
FDN64Reverb is a reverb equipped with a feedback delay network (FDN). However, the size of feedback matrix is 64.
full
- VST 3 (github.com) macOS
- VST 3 (github.com) full
package contains following builds.
Linux build is built on Ubuntu 24.04. If you are using distribution other than Ubuntu 24.04, plugin will not likely to run. In this case, please take a look at build instruction.
macOS
package is recommended for macOS user. I can’t
purchase Apple Developer Program, therefore installation requires a
workaround to bypass Gatekeeper. Details of workaround are written in
Installation -> macOS Specific
section.
Feel free to contact me on GitHub
repository or ryukau@gmail.com.
You can fund the development through paypal.me/ryukau.
Move *.vst3
directory to:
/Program Files/Common Files/VST3/
for Windows.$HOME/.vst3/
for Linux./Users/$USERNAME/Library/Audio/Plug-ins/VST3/
for
macOS.DAW may provides additional VST3 directory. For more information, please refer to the manual of the DAW.
Notice: Some plugins don’t have presets provided by Uhhyou Plugins.
Presets are included in the plugin package linked at the top of this page. To install presets, follow the steps below.
presets
directory placed in extracted
package.Uhhyou
directory into an OS specific preset
directory (see below).Below is a list of preset directories for each OS.
/Users/$USERNAME/Documents/VST3 Presets
$HOME/.vst3/presets
/Users/$USERNAME/Library/Audio/Presets
Preset directory name must be the same as the plugin. If preset directory does not exist, create it.
If DAW doesn’t recognize the plugin, try installing C++
redistributable (vc_redist.x64.exe
). Installer can be
found in the link below.
On Ubuntu 24.04, those packages are required.
sudo apt install libxcb-cursor0 libxkbcommon-x11-0
If DAW doesn’t recognize the plugin, take a look at
Package Requirements
section of the link below and make
sure all the VST3 related package is installed.
REAPER on Linux may not recognize the plugin. A workaround is to
delete a file ~/.config/REAPER/reaper-vstplugins64.ini
and restart REAPER.
Important: full
package is not
confirmed working. When using full
, try removing
following files.
Contents/Resources/Documentation
Contents/x86_64-linux
Contents/x86_64-win
macOS
package doesn’t contain above files. Also, all
packages are in “ad-hoc signing” state set by codesign
command.
When trying to run plugin first time, following message may appear on macOS.
<PluginName>.vst3 is damaged and can't be opened. You should move it to the Trash.
In this case, open terminal and try running one or both of
following command to unzipped .vst3
directory. Replace
/path/to/PluginName.vst3
according to your install
location.
xattr -rd com.apple.quarantine /path/to/PluginName.vst3
xattr -rc /path/to/PluginName.vst3
Plugin may be considered as unsigned/un-notarized application. In this case, open System Preferences, go to Security & Privacy → General, then click the Open Anyway button. The offcial Apple help page linked below has screenshots for the procedure. See “If you want to open an app that hasn’t been notarized or is from an unidentified developer” section.
If the plugin is still not working, try changing install location
to /Library/Audio/Plug-ins/VST3/
or
/Users/$USERNAME/Library/Audio/Plug-ins/VST3/
whichever
still haven’t tried.
If all the above methods do not work, try following the steps below.
sudo spctl --master-disable
.Beware that steps above degrades security of your system. To revert the settings, follow the steps below.
sudo spctl --master-enable
.codesign
Note This section may not relevant to
macOS
packages. However it’s not verified. (GitHub
issue)
To use full
package, following command might be
used.
sudo codesign --force --deep -s - /path/to/PluginName.vst3
codesign
might not be available without installing Xcode.
At first time, create color config file to:
/Users/USERNAME/AppData/Roaming/UhhyouPlugins/style/style.json
on Windows.$XDG_CONFIG_HOME/UhhyouPlugins/style/style.json
on
Linux.
$XDG_CONFIG_HOME
is empty, make
$HOME/.config/UhhyouPlugins/style/style.json
./Users/$USERNAME/Library/Preferences/UhhyouPlugins/style/style.json
on macOS.style.json
will be loaded for each time a plugin
window opens.
Several color themes are available on the link below. To use, copy
the text to style.json
.
Below is an example of style.json
.
{
"fontFamily" : "Tinos" ,
"fontBold" : true ,
"fontItalic" : true ,
"foreground" : "#000000" ,
"foregroundButtonOn": "#000000" ,
"foregroundInactive": "#8a8a8a" ,
"background" : "#ffffff" ,
"boxBackground" : "#ffffff" ,
"border" : "#000000" ,
"borderCheckbox" : "#000000" ,
"borderLabel" : "#000000" ,
"unfocused" : "#dddddd" ,
"highlightMain" : "#0ba4f1" ,
"highlightAccent" : "#13c136" ,
"highlightButton" : "#fcc04f" ,
"highlightWarning" : "#fc8080" ,
"overlay" : "#00000088",
"overlayHighlight" : "#00ff0033"
}
Following is a list of font options.
fontFamily
: Font family name.fontBold
: Enable bold style when
true
, disable when false
.fontItalic
: Enable italic style when
true
, disable when false
.System font can be used as fontFamily
. To use
different fonts for different plugins, place *.ttf
file
into custom font path:
*.vst3/Contents/Resources/Fonts
.
Notice: If the combination of
fontFamily
, fontBold
,
fontItalic
does not exist in custom font path, default
font of VSTGUI is used.
If fontFamily
is set to empty string ""
,
then "Tinos"
is used as fallback. If the length is greater than 1 and the font
family name doesn’t exist, default font of VSTGUI is used.
Styles other than bold, italic or bold-italic are not supported by VSTGUI. For example, “Thin”, “Light”, “Medium”, and “Black” weights cannot be used.
Hex color codes are used.
First letter #
is conventional. Plugins ignore the
first letter of color code, thus ?102938
,
\n11335577
are valid.
Do not use characters outside of 0-9a-f
for color
value.
Following is a list of color options. If an option is missing, default color will be used.
foreground
: Text color.foregroundButtonOn
: Text color of active toggle
button. Recommend to use the same value of foreground
or
boxBackground
.foregroundInactive
: Text color of inactive
components. Currently, only used for TabView.background
: Background color.boxBackground
: Background color of inside of box
shaped components (Barbox, Button, Checkbox, OptionMenu, TextKnob,
VSlider).border
: Border color of box shaped components.borderCheckbox
: Border color of CheckBox.borderLabel
: Line color of parameter section
label.unfocused
: Color to fill unfocused components.
Currently, only used for knobs.highlightMain
: Color to indicate focus is on a
component. Highlight colors are also used for value of slider
components (BarBox and VSlider).highlightAccent
: Same as highlightMain
.
Used for cosmetics.highlightButton
: Color to indicate focus is on a
button.highlightWarning
: Same as highlightMain
,
but only used for parameters which requires extra caution.overlay
: Overlay color. Used to overlay texts and
indicators.overlayHighlight
: Overlay color to highlight current
focus.Right Click on the controls pops up a context menu provided by DAW.
Knob and slider provides following controls:
dB
) parameters,
floor is applied after the value is converted to amplitude.Control with many blue vertical bars (BarBox) have some keyboard shortcuts. Shortcuts are enabled after left clicking BarBox and mouse cursor is on the inside of BarBox.
Input | Control |
---|---|
Left Drag | Change Value |
Shift + Left Drag | Change Value (Snapped) |
Ctrl + Left Drag | Reset to Default |
Ctrl + Shift + Left Drag | Change Value (Skip Between Frames) |
Middle Drag | Draw Line |
Shift + Middle Drag | Edit One Bar |
Ctrl + Middle Drag | Reset to Default |
Ctrl + Shift + Middle Drag | Toggle Lock |
a | Alternate Sign |
d | Reset Everything to Default |
D | Toggle Min/Mid/Max |
e | Emphasize Low |
E | Emphasize High |
f | Low-pass Filter |
F | High-pass Filter |
i | Invert Value (Preserve minimum) |
I | Invert Value (Minimum to 0) |
l | Toggle Lock under Mouse Cursor |
L | Toggle Lock for All |
n | Normalize (Preserve minimum) |
N | Normalize (Minimum to 0) |
p | Permute |
r | Randomize |
R | Sparse Randomize |
s | Sort Descending Order |
S | Sort Ascending Order |
t | Subtle Randomize (Random walk) |
T | Subtle Randomize (Converge to 0) |
z | Undo |
Z | Redo |
, (Comma) | Rotate Back |
. (Period) | Rotate Forward |
1 | Decrease |
2-4 | Decrease 2n-4n |
5-9 | Decimate by holding 2n-5n |
Snapping is not available for all BarBox. If you’d like to have snapping for certain BarBox, feel free to open issue to GitHub repository.
Edit One Bar with Shift + Right Drag holds a bar under the cursor when mouse right button is pressed. Then only changes that one bar while holding down mouse right button.
Toggle Lock with Ctrl + Shift + Right Drag behaves as line edit. When right mouse button (RMB) is pressed, it holds the opposite state of the bar below mouse cursor, then use the state for the rest of bars. For example, if RMB is pressed on a locked bar, dragging unlocks bars while holding down RMB.
Some BarBox has scroll bar to zoom in. Scroll bar has handles on left end and right end. To control zoom, use Left Drag on one of the handle. Scroll bar also has following controls:
Setting Feedback
to 1 and Highpass Cutoff
to 0 might adds massive direct current depending on input signal.
If the image is small, use Ctrl + Mouse Wheel or “View Image” on right click menu to scale.
Diagram only shows overview. It’s not exact implementation.
Delay times in seconds. Below is the equation to calculate the total of delay time.
delayTime = (Time Multi.) * (Delay Time) + (Time LFO Amount) * random().
Note that maximum delay time do not exceed 1 second. This means
that if both Delay Time
and Time LFO Amount
are set to 1, then LFO stop working.
Amounts of LFO modulation to delay times.
When Interp. Rate
exceeds 1.0, LFO modulations start
adding noticeable noise. To get smooth output, recommend to set
Interp. Rate
under 0.25.
Cutoff frequencies of lowpass filters that are applied to delay outputs.
Cutoff frequencies of highpass filters that are applied to delay outputs.
Note that setting Feedback
to 1 and
Highpass Cutoff
to 0 might adds massive direct current
depending on input signal.
A multiplier to Delay Time
. Useful to change all the
delay time at once.
Feedback amount of FDN. In other words, Feedback
is a
scalar that multiplies feedback matrix.
When Feedback
is close to 1.0, it lengthen the reverb
time. When set to exactly 1.0, the reverb stop to decay. In this case,
Gate
can be used to shut down the reverb.
Rate limiting value of delay time interpolation. For example, when
Interp. Rate
is set to 0.1, changing delay time from 0 to
1 samples requires 10 samples of interpolation time.
Threshold of gate.
When input amplitude is less than the value of Gate
for a while, the gate modulates Stereo Cross
to make
output amplitude to 0.
Gate is intended to use with rotation. Release time is approximately 5 ms.
Type of feedback matrix. Note that changing this parameter may cause pop nosie.
Abbreviation | Full Name | Additional Infomation | Quality |
---|---|---|---|
Ortho. | Orthogonal | Good | |
S. Ortho. | Special orthogonal | Good | |
Circ. Ortho. | Circulant | OK | |
Circ. 4 | Circulant | 4 non-zero elements per row | SFX |
Circ. 8 | Circulant | 8 non-zero elements per row | SFX |
Circ. 16 | Circulant | 16 non-zero elements per row | SFX |
Circ. 32 | Circulant | 32 non-zero elements per row | SFX |
Upper Tri. + | Upper triangular | Range of randomization is [0, 1] |
Bad |
Upper Tri. - | Upper triangular | Range of randomization is [-1, 0] |
Bad |
Lower Tri. + | Lower triangular | Range of randomization is [0, 1] |
Bad |
Lower Tri. - | Lower triangular | Range of randomization is [-1, 0] |
Bad |
Schroeder + | Schroeder reverb | Range of randomization is [0, 1] |
Bad |
Schroeder - | Schroeder reverb | Range of randomization is [-1, 0] |
Bad |
Absorbent + | Absorbent allpass | Range of randomization is [0, 1] |
OK |
Absorbent - | Absorbent allpass | Range of randomization is [-1, 0] |
OK |
Hadamard | Hadamard | No randomization | Good |
Conference | Conference | No randomization | Good |
Quality is rough indication. Bad means it frequently adds metallic tones to output. Good means almost no metallic tone. OK is in between good and bad. SFX means they sound strange as a reverb. Bad matrices can be used to add more effects with rotation.
Seed value for randomization of feedback matrix. Note that changing this parameter may cause pop nosie.
A button to randomize feedback matrix. Pressing
Change Matrix
also changes the value of
Seed
. Note that changing this parameter may cause pop
nosie.
A gain applied to input signal which bypasses FDN.
FDN output gain.
Stereo crossing feedback amount between left and right FDNs.
Setting Stereo Cross
to 1.0 stops input to prevent blow
up.
Rotation speed of FDN input gains.
Initial phase of the waveform to rotate input gains.
Offset
can be used to change the sound when
Speed
is 0, but Skew
is greater than 0.
Feedback matrix affects the character of output.
Changes the waveform used to rotate input gains. Note that when
Skew
is set to 0, Speed
and
Offset
stop working.
Below is a plot of relation between Skew
and rotation
waveform.
style.json
crashes
plugin.foregroundInactive
.processContext
is
nullptr
.Rotation
counter.virtual
to destructor of common components.
This may prevent some cause of crash or memory leak.Interp. Rate
is shared between all
FDN64Reverb instances.style.json
.FDN64Reverb is licensed under GPLv3. Complete licenses are linked below.
If the link above doesn’t work, please send email to
ryukau@gmail.com
.
VST is a trademark of Steinberg Media Technologies GmbH, registered in Europe and other countries.