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win-capture-audio 2.2.3, published by bozbez, is an open-source OBS Studio plugin that solves the long-standing limitation of capturing only system-wide audio by enabling per-application audio routing directly into an OBS scene. Streamers and recording artists can now isolate the sound of a single game, browser, voice-chat client, or any other Windows program without also capturing desktop notifications, background music, or microphone chatter, making post-production mixing, live commentary, and multi-language broadcasting far simpler. The tool appears as an additional “Application Audio Output Capture” source inside OBS, where the user simply selects the desired executable from a drop-down list; the plugin then intercepts the application’s audio endpoint through the Windows Audio Session API and presents it as a clean, synchronized track that respects volume levels, mute states, and device changes in real time. Because the capture is independent of global Windows settings, creators can stream a loud game while keeping their own monitoring low, record a Discord interview without leaking Spotify, or produce side-by-side comparisons of two different media players without ever leaving OBS. Compatible with OBS Studio 27 and newer on Windows 10/11, the project has released two public versions to date—2.2.3 being the current stable build—each delivered as a lightweight DLL that installs by copying into the OBS plugins folder and requires no additional drivers or virtual cables. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version, and supporting batch installation of multiple applications.
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