This is an audio spectrum analyzer for KDE panel.

Requirements

	Version
OpenGL / GLSL	>= 3.0 / 1.30
org.kde.kirigami	>= 2.3 (kf 5.42)
org.kde.newstuff	>= 1.1 (kf 5.63)

If your KDE Framework is older than 5.63, see here.

Dependencies

Arch Linux

sudo pacman -S qt5-websockets \
    python-docopt python-numpy python-pyaudio python-cffi python-websockets 

openSUSE

sudo zypper in libQt5WebSockets5 \
    python3-docopt python3-numpy python3-PyAudio python3-cffi python3-websockets

Ubuntu

sudo apt-get install qml-module-qt-websockets \
    python3-docopt python3-numpy python3-pyaudio python3-cffi python3-websockets

Solus

sudo eopkg install qt5-websockets  \
   python-docopt PyAudio numpy python-cffi python-websockets

Installation

Via KDE Store

1. Open the “Add Widgets” dialog of your desktop
2. Go to “Get New Widgets” in the bottom
3. Click “Download New Plasma Widgets”
4. Search for “panon”
5. Click “Install”

Via Command Line

git clone https://github.com/rbn42/panon.git
cd panon

# Download SoundCard and hsluv-glsl
git submodule update --init

# Build translations (optional)
mkdir build
cd build
cmake ../translations
make install DESTDIR=../plasmoid/contents/locale
cd ..

# To install
kpackagetool5 -t Plasma/Applet --install plasmoid

# To upgrade
kpackagetool5 -t Plasma/Applet --upgrade plasmoid

Via AUR

plasma5-applets-panon is available for ArchLinux.

Visual Effects

Known Issues

1. When a panon widget is removed manually from the Plasma desktop, a process called “python -m panon.backend” will be left alive. The process will be killed when plasma itself is killed (or you can find and kill this process manually). But before that, it may affect audio performance.

Troubleshooting

Credits

Main Contributors

From old to new,

	Contributor
AUR package maintained by	mareex, flying-sheep (Philipp A.)
German translation added by	NullDev (Chris)
“Download New Effects” dialog added by	flying-sheep (Philipp A.)
Dutch translation added by	Vistaus (Heimen Stoffels)
“Monitor of Current Device” option added by	Yuannan

And thanks for all the reported issues and suggestions, which I would not list here.

Third Party Source

Files	Source	Licensed under
source.py and spectrum.py	adapted from PyVisualizer
hsv2rgb in utils.fsh	copied from GLSL-color.md