Blackhole Audio

Overview

BlackHole is a macOS virtual audio loopback driver that routes audio between applications with zero additional latency. It supports up to 256+ channels and sample rates including 44.1kHz to 192kHz. Designed for audio production and recording workflows, such as capturing desktop audio in apps like OBS or DAWs.

Key Features

• Zero Latency Routing - Passes audio between applications without introducing additional latency.
• Multi-Channel Support - Handles 16 channels by default, customizable up to 256+ channels.
• High Sample Rates - Supports 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz.
• Multi-Output Device Setup - Combines with built-in output for simultaneous monitoring and routing.
• Aggregate Device Integration - Routes microphone or other inputs to BlackHole for DAW use.
• Homebrew Installation - Installable via 'brew install --cask blackhole'.

Pricing

Platforms & Requirements

Runs exclusively on macOS as a Core Audio virtual driver. Compatible with macOS versions including Catalina and later; install via installer or Homebrew. Requires Audio MIDI Setup for configuration; no Windows or other platform support.

Integrations & Ecosystem

• OBS Studio
• Digital Audio Workstations (DAWs)
• Audio MIDI Setup (multi-output/aggregate devices)
• Core Audio applications
• Homebrew package manager

Alternatives

Reputation

BlackHole is widely used and praised in macOS audio communities for its reliability, zero-latency performance, and free open-source nature, especially for OBS streaming and DAW routing²³⁴. Users note easy setup via Audio MIDI Setup but mention a learning curve for beginners configuring multi-output or aggregate devices⁶⁸. Occasional support requests focus on uninstallation or compatibility, with active GitHub maintenance addressing issues³⁷.