NoClap

NoClap is a macOS audio utility that adds configurable delay to audio input devices and pipes the delayed audio to a virtual cable. This is useful for content creators, streamers, and audio professionals who need to synchronize audio across multiple sources or compensate for latency issues.

Features

• Audio Device Selection - Choose from all available audio input devices on your Mac
• Virtual Cable Selection - Select from detected virtual audio cables (BlackHole, VB-Cable, Soundflower)
• Configurable Delay - Adjust the delay from 0 to 300 milliseconds
• Real-time Processing - Low-latency audio delay powered by AudioKit
• Simple Interface - Easy-to-use tabbed interface with configuration summary

Requirements

• macOS 10.13 or later
• One of the following virtual audio cables:
  • BlackHole (recommended) - https://github.com/ExistentialAudio/BlackHole
  • VB-Cable - https://vb-audio.com/Cable/
  • Soundflower - https://github.com/akhudek/Soundflower

Install Virtual Cable (BlackHole)

brew install blackhole-2ch

Usage

1. Launch NoClap - Open the application
2. Select Input Device - Choose your microphone from the Devices list
3. Select Virtual Cable - Choose your virtual cable from the Virtual Cable(s) list
4. Set Delay - Adjust the slider to your desired delay (0-300ms)
5. Toggle ON - Switch the toggle to start audio processing
6. Configure Other Apps - Set the virtual cable as your audio input in other applications

Example Workflow (Streaming)

Microphone → NoClap (150ms delay) → VB-Cable → OBS/Streamlabs/Discord

This allows you to:

• Compensate for system latency
• Sync audio from different sources
• Route audio to multiple applications
• Use in conferencing apps, DAWs, or stream software

Installation

Prerequisites

1. Install a virtual audio cable (see Requirements)
2. Xcode 14+ with Swift 5.9+

Build and Run

1. Clone or open the project in Xcode
2. File → Add Packages...
3. Add AudioKit: https://github.com/AudioKit/AudioKit.git
4. Build and run:

   cmd + R

The app will launch with the main window and menu bar icon.

Building for Release

xcodebuild build -configuration Release

The app will appear in your Applications folder.

License

See the License tab in the app for more information.

About

For more information, see the About tab in the application.