Keyboard Visualizer

OpenRGB Audio Visualizer for Windows, Linux, and MacOS

Keyboard Visualizer turns your OpenRGB-supported RGB setup into a spectacular light show for your music. Keyboard Visualizer is able to listen to any input or loopback audio device on your computer so it can visualize audio from any music player, website, game, or other application.

To use Keyboard Visualizer with your setup, you must first install OpenRGB and set it up to detect all of your RGB devices. OpenRGB can be found here:

https://gitlab.com/CalcProgrammer1/OpenRGB

What about the old Keyboard Visualizer with Razer Chroma SDK, Corsair SDK, etc?

Development on this version has stalled as I'm not interested in supporting a multitude of proprietary SDKs that change constantly and only work on Windows. This version remains as Keyboard Visualizer 3.x and downloads are still available in the Release submodule. I will accept pull requests for this version if others wish to keep it alive, but I plan to focus primarily on the OpenRGB version (4.x) going forwards.

Building

You must have the Microsoft Visual C++ 2015 32-bit redistributable package installed to run this program (Windows).

To build this project in Linux, install QT Creator and libopenal-dev and open/build the .pro file.

Settings

There are many settings you can tweak to make Keyboard Visualizer work with your audio setup and to personalize it to your liking.

* Amplitude - How reactive the visualizer is to sound.  If it is not responding, or is responding with a low level,
              increase this value.
* Background Brightness - How bright the background layer is (0-100%)
* Average Size - How many bars of input to combine, increase for a less detailed output that may look better on
                 devices with low LED counts.
* Decay - How much of the previous value is retained from step to step.  Higher values make the visualizer less
          flickery but seem slower to react, while low values are fast and flickery.  (0-100%)
* Delay - How many milliseconds to wait between each device update.  Lower values give a higher "frame rate"
          but can cause flicker or other issues on certain setups.
* Normalization Offset - Adjusts amplitude of bass frequencies, increase if your song lacks bass and decrease if
                         your song is bass heavy
* Normalization Scale - Amount to scale up each consecutive frequency bar over normalization offset, to amplify
                        higher frequencies.  Increase if the right side of the visualizer is low.
* Filter Constant - Amount of signal to blend per update, 0-1 floating point.  A value of 1 disables filtering
                    and updates the spectrum every cycle, a value between 0 and 1 blends the new value with the
                    previous value, slowing the response.  A value of 0 holds the existing value and ignores
                    new samples.
* FFT Window Mode - Select between None, Hamming, Hanning, and Blackman windowing functions
                    (see https://en.wikipedia.org/wiki/Window_function for the math behind FFT windowing)
* Background Mode - Select between various static and animated background colors and patterns
* Foreground Mode - Select between various static foreground colors and patterns
* Single Color Mode - Select between various color options for devices that use the single color effect
* Average Mode - Select between discrete bars (binning) or a smoothed line (low pass) output
* Animation Speed - Speed of background and foreground animated patterns, default 100, can be negative
                    to reverse the direction of the pattern, can be increased to speed up the pattern or
                    decreased to slow it down.
* Filter Constant - A low pass filter constant between 0 and 1.  A value less than 1 slows the response of the
                    visualization, which makes for a less jumpy, smoother effect the lower the value is.
* Background Timeout - How long to wait (in multiples of 10 milliseconds) before fading the background in.

Command Line Options and Settings File

Keyboard Visualizer allows you to save your custom settings in two different ways. You can pass parameters in on the command line (which is useful for creating shortcuts) or you can save a settings file in the same directory that the .exe is stored called settings.txt. The parameters are as follows:

Available command line commands:
    help              - Display this message and quit
    startminimized    - Start in system tray

Available command line arguments:
    Usage: argument1=value1 argument2=value2 ...

    amplitude         - Adjust the amplitude of the visualizer
    bkgd_bright       - Adjust the background brightness
    avg_size          - Number of points to average
    decay             - Percentage of value to decay every step
    delay             - Milliseconds between each device update
    nrml_ofst         - Normalization offset, floating point value
    nrml_scl          - Normalization scale, floating point value
    fltr_const        - Low pass filter constant, floating point value 0-1
    window_mode       - FFT windowing mode selector, values are:
                      - 0:  No windowing
                      - 1:  Hanning window
                      - 2:  Hamming window
                      - 3:  Blackman window
    bkgd_mode         - Background mode, values are:
                      - 0  Black
                      - 1  White
                      - 2  Red
                      - 3  Orange
                      - 4  Yellow
                      - 5  Green
                      - 6  Cyan
                      - 7  Blue
                      - 8  Purple
                      - 9  Green/Yellow/Red
                      - 10 Green/White/Red
                      - 11 Blue/Cyan/White
                      - 12 Red/White/Blue
                      - 13 Rainbow Bars
                      - 14 Rainbow Bars Inverse
                      - 15 Original
                      - 16 Rainbow
                      - 17 Color Wheel
                      - 18 Spectrum Cycle
    frgd_mode         - Foreground mode, values are:
                      - 0  Black
                      - 1  White
                      - 2  Red
                      - 3  Orange
                      - 4  Yellow
                      - 5  Green
                      - 6  Cyan
                      - 7  Blue
                      - 8  Purple
                      - 9  Green/Yellow/Red
                      - 10 Green/White/Red
                      - 11 Blue/Cyan/White
                      - 12 Red/White/Blue
                      - 13 Rainbow Bars
                      - 14 Rainbow Bars Inverse
                      - 15 Original
                      - 16 Rainbow
                      - 17 Color Wheel
                      - 18 Spectrum Cycle
    single_color_mode - Single color mode, values are:
                      - 0  Black
                      - 1  White
                      - 2  Red
                      - 3  Orange
                      - 4  Yellow
                      - 5  Green
                      - 6  Cyan
                      - 7  Blue
                      - 8  Purple
                      - 9  Background
                      - 10 Follow Background
                      - 11 Follow Foreground
    avg_mode          - Visualizer averaging mode
                      - 0:  Binning
                      - 1:  Low-pass filtering
    anim_speed        - Animation Speed (percent)
    server            - Configure this instance as a server for synchronization
                      -  Takes what port to serve on as argument, i.e. server=1234
    client            - Configure this instance as a client for synchronization
                      -  Takes the IP/hostname of the server and port as arguments,
                      -  i.e. client=192.168.1.100,1234

Available Visual Effects

* Spectrograph - Shows vertical bars for each frequency in the audio
* Bar - Shows a single bar representing bass frequencies
* Single Color - Brightness and color represent strength of bass frequencies

Donations

• I created this project for fun mostly, and Razer's support of sending free products for me to integrate is awesome, but several people have asked if I'd accept donations. I've gotten back into cryptocurrency and mining recently so if you want to send some Bitcoin, Dogecoin, or Ethereum my way you can do so with the addresses below. I don't want to bother with PayPal and its ugly fees and I detest online advertising and block all ads on my PCs so I would never put ads on my videos or programs.

• Bitcoin: 1N83YPu7btXYadPS1neB9zX7X1QTdpyZQ

• Dogecoin: D7nqJZ3dyfCMRvS6J5jpoxerpteUG5z7Pm

• Ethereum: 0xb5023019E6789af4887aED2056E471DF0f4c8e93

• Monero: 44p8QfKTHxA65PeY1HabFsaZnayVu36h2eNHsTVcHzg5EeUDszmK91aTaAc4otCRdL4644gMzatb85bWyZB7vfK78siS962