CommonMik

Per-application audio mixer for Windows
🇹🇷 Türkçe

---

Capture audio from specific apps (Spotify, Chrome, games), mix with your microphone, and output to a virtual microphone for Discord, Zoom, or any voice chat.

Features

• Per-app audio capture — Select exactly which applications to capture using WASAPI Process Loopback (Windows 10 2004+)
• Microphone mixing — Combine your mic input with app audio into a single virtual microphone output
• Independent volume controls — Adjust each source separately with real-time level meters
• Virtual microphone output — Routes mixed audio through VB-Audio Virtual Cable
• WASAPI exclusive mode — Native 48kHz pipeline, zero resampling when using WASAPI devices
• Sinc resampling — High-quality polyphase FIR resampling when sample rates differ
• System tray — Minimize to tray, keeps running in background
• Auto-save settings — Output device, sources, volumes, mute states persist across sessions
• Multi-language — English and Turkish UI
• Native Windows app — Uses WebView2 (Edge Chromium), no browser dependency
• Dark theme UI — Glassmorphism design with real-time audio meters

How It Works

Spotify  ───────┐
Chrome   ───────┤──→  CommonMik  ──→  CABLE Input  ──→  Discord mic input
Your mic ───────┘      (mixer)        (virtual cable)    (CABLE Output)

Windows audio output stays on your headphones — CommonMik captures app audio via WASAPI Process Loopback without redirecting system output.

Requirements

• Windows 10 version 2004+ / Windows 11
• VB-Audio Virtual Cable (free)

Installation

Pre-built (Recommended)

1. Download the latest release from Releases
2. Install VB-Audio Virtual Cable
3. Run CommonMik.exe

From Source

git clone https://github.com/egeorcun/CommonMik.git
cd CommonMik
pip install -r requirements.txt
python main.py

Build Executable

pip install -r requirements.txt
pyinstaller build.spec
# Output: dist/CommonMik/CommonMik.exe

Usage

1. Select output device — Choose CABLE Input (VB-Audio Virtual Cable) [WASAPI]
2. Add sources — Click ➕ to add your microphone and/or application audio
3. Start engine — Click the Start button
4. In Discord — Set your input device to CABLE Output (VB-Audio Virtual Cable)

Tips

• Keep all volumes at 100% for cleanest signal — adjust at source (Spotify) or destination (Discord)
• Always select WASAPI devices for lowest latency and best quality
• Close the window to minimize to system tray — right-click tray icon to quit

Architecture

core/
  audio_engine.py  — AudioFIFO ring buffer, AudioSource, AudioEngine mixer
  loopback.py      — WASAPI Process Loopback via ActivateAudioInterfaceAsync
ui/
  index.html       — Main UI layout
  style.css        — Dark glassmorphism theme
  app.js           — Frontend controller (pywebview JS API bridge)
main.py            — pywebview window + system tray + Python↔JS API

License

MIT