DeejNG is a modern, extensible audio mixer and controller for Windows, built with WPF (.NET 9), NAudio, and SkiaSharp. It allows real-time control over system and app volumes using physical sliders (e.g. Arduino), complete with VU meters, mute toggles, and persistent target mappings.
- 🎛️ Physical Slider Control via serial input
- 🎚️ Multiple Channels with per-channel volume and mute
- 🎧 Supports Applications, System Audio, and Microphones
- 🔇 Per-Channel Mute with Visual Feedback
- 📈 Smooth VU Meters with SkiaSharp rendering
- 🔁 Session Auto-Reconnect & Expiration Handling
- 💾 Persistent Settings including targets, input mode, themes, and more
- 🌓 Light/Dark Theme Toggle
- 🛠️ Start at Boot and Start Minimized options
- 🔊 Control Unmapped Applications
- 🎙️ Input (Microphone) Device Volume Support
- 🧠 Smart Session Caching and optimized session lookup
- 🧰 Extensive Logging and Self-Healing Timers
- Channels (sliders) are represented by
ChannelControlelements. - Each slider is mapped to one or more targets:
- System audio
- Specific applications (by executable name)
- Input devices (microphones)
- Unmapped sessions (everything else)
- Volume data is received via serial (USB COM port).
- VU meters are driven by a 25ms dispatcher timer, showing real-time audio levels.
- Targets are assigned via a double-click on a channel, launching a session picker.
- Connect your physical slider hardware (e.g. Arduino).
- Launch DeejNG.
- Select the correct COM port from the dropdown and click Connect.
- Sliders will auto-generate based on incoming serial data (e.g.
0.5|0.3|...).
- Double-click a slider to open the session picker.
- Select from running applications, "System", "Unmapped Applications", or microphones.
- You can select multiple targets per slider. One slider can control multiple apps or a mic.
- Click the Mute button on each channel to toggle audio mute.
- The button will turn red when muted.
- Use the "Show Sliders" checkbox to toggle VU meters.
- Meters update live with peak-hold animation.
Settings are saved automatically and include:
- Assigned targets per slider
- Input mode per channel
- Theme preference (light/dark)
- Slider inversion
- Smoothing toggle
- Start on boot
- Start minimized