avis - High-Performance Odin Audio Visualizer.

avis is a lightweight, high-performance audio visualizer written in the Odin programming language. It captures system loopback audio or local files and renders responsive, color-shifting geometry utilizing Raylib.

It links directly to the ALSA system monitor sink on Linux for crisp loopback audio capture, rendering smooth wave sweeps and an audio-reactive black ferrofluid-like core.

• Audio Input Options: Supports direct ALSA loopback capture from the system monitor output, or local file playback (.mp3, .wav).
• Reactive Core Puddle: Solid black center puddle overlaying a glowing white backing plate, morphing from a 6-pointed star at rest into 8 sharp needle-like spikes.
• Outer Frequency Loops: Rotating, color-shifting outer wave loops and a tight-orbit mini-wave ring that expand and morph dynamically to different audio frequency bins.
• Dynamic Scaling: Window is resizable, scaling all vector drawing coordinates and anti-aliasing dynamically.

You can run the compiled binary directly to start the visualizer capturing default system audio output.

# Capture and visualize system audio output
./avis

# Play and visualize a local audio file (.mp3, .wav, etc.)
./avis -f path/to/music.mp3
# or
./avis --file path/to/music.mp3

# Check usage options
./avis --help

Esc: Close window and cleanly terminate the audio capture threads.

Resize: The window can be resized at any time; geometry scales and anti-aliases dynamically.

• Odin Compiler (latest version)
• Raylib
• Make
• ALSA development headers (Required for loopback capture):
  • Arch Linux : sudo pacman -S alsa-lib
  • Debian/Ubuntu: sudo apt install libasound2-dev

Modify visual properties directly inside the flat source files:

• Core and wave sizes: render.odin
• History queues and vertex counts: geometry.odin

Compile the application:

make

Install to system:

sudo make install  # Defaults to /usr/local/bin

Clean build artifacts:

make clean

Uninstall from system:

sudo make uninstall

Contributions are welcome! If you'd like to contribute to this project, please fork the repository and submit a pull request.

Chad Humphries | Website | GitHub Profile

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