Stille

A minimal floating microphone level monitor for macOS. Perfect for keeping an eye on your audio levels during video calls and meetings.

Features

• Floating Window - Always-on-top panel that stays visible during meetings
• Real-time Level Meter - Visual bar showing current microphone input level
• Peak Indicator - White line showing recent peak levels
• Decibel Display - Numeric dB reading for precise monitoring
• Color Coding - Green → Yellow → Orange → Red based on volume
• Menu Bar Icon - Discrete waveform icon with quick access menu
• Draggable - Position the meter anywhere on your screen
• Works Across Spaces - Visible on all virtual desktops

Building

Requirements

• macOS 13.0 or later
• Xcode 15.0 or later

Steps

1. Open the project in Xcode:

   open Stille.xcodeproj
   

2. Select your development team in the project settings (Signing & Capabilities)

3. Build and run (⌘+R)

4. Grant microphone permission when prompted

Command Line Build

xcodebuild -project Stille.xcodeproj -scheme Stille -configuration Release build

Usage

1. Launch Stille - it will appear as a floating window in the top-right corner
2. Grant microphone access when prompted
3. Drag the window to your preferred position
4. Use the menu bar icon (waveform) to:
   • Show the level meter if hidden
   • Quit the app

Architecture

Stille/
├── StilleApp.swift      # App entry point, window & menu setup
├── AudioMonitor.swift   # AVAudioEngine-based mic monitoring
├── LevelViewModel.swift # Observable state for UI updates
├── LevelMeterView.swift # SwiftUI level meter visualization
├── Info.plist           # App configuration & permissions
└── Stille.entitlements  # Sandbox & microphone entitlements

Privacy

Stille only monitors your microphone locally. No audio is recorded, stored, or transmitted. The app requires microphone access solely to display real-time levels.

License

MIT License - Feel free to modify and use as you wish!