obs-asio for Windows

Plugin overview

obs-asio is a free Windows plugin that adds ASIO (Audio Stream Input/Output) support to OBS Studio. It enables direct routing of low-latency audio streams into and out of OBS, giving streamers and recording professionals tighter control over their sound without sacrificing quality.

Why use this plugin

• Improved audio fidelity and reduced latency for live broadcasts and recordings.
• Simpler device selection and routing inside the familiar OBS interface.
• Expanded compatibility for professional audio interfaces that rely on ASIO drivers.

Compatible hardware and interfaces

• High-end audio interfaces using dedicated ASIO drivers (Focusrite, RME, etc.).
• USB and Thunderbolt interfaces that expose ASIO endpoints.
• Multi-channel soundcards and external mixers with ASIO support.

Basic setup in OBS

1. Install the plugin and restart OBS Studio.
2. Open the audio settings, choose the ASIO plugin as an input/output source, and select the desired ASIO device and channels.
3. Adjust buffer sizes and sample rates in the plugin settings to balance latency and stability.

Suggested alternative

• UTM for Windows — trial available. If you need a different approach (for example, running audio tools in a separate virtual environment), UTM provides a trial version for experimentation on Windows systems.

Summary

obs-asio is a lightweight yet powerful addition for anyone who needs professional-grade audio routing in OBS. It streamlines configuration, supports a wide range of ASIO-capable devices, and helps maintain high sound quality during streaming or recording sessions.