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Windows 11 Adds Windows MIDI Services

by ailona•

Windows 11 adds Windows MIDI Services with MIDI 1.0 and 2.0 support, multi-client access, custom endpoints, built-in loopback, automatic translation, high-resolution data, timestamps, and scheduled messages to improve device interoperability and timing for music production workflows.

Windows 11 now includes Windows MIDI Services, adding native MIDI 2.0 support and enhancing MIDI 1.0. This update rewrites Windows MIDI infrastructure for better multi-client use, naming, loopback, timing, and translation. Musicians and developers get broader compatibility without needing vendor drivers or app updates.

Main feature/change and impact

Windows MIDI Services introduces native MIDI 2.0 support and a rewritten MIDI 1.0 stack. The service enables multi-client access so multiple apps use the same device simultaneously. It provides automatic protocol translation between MIDI 2.0 and MIDI 1.0. Device discovery, richer endpoint metadata, and timestamps under one microsecond improve reliability. This change reduces vendor driver need and simplifies app interoperability across Windows 11 systems.

Practical implications

Developers gain an SDK for high-resolution MIDI 2.0 features and automatic downscaling for legacy apps. DAW projects retain existing MIDI port names unless changed, avoiding reconnection hassles. Built-in loopback and app-to-app endpoints remove third-party virtual MIDI drivers. Per-note expression, uncapped resolution, endpoint images, and scheduled messages enable more expressive performances and tighter timing in professional and consumer workflows.
“We’re excited to announce that Windows 11 now supports both MIDI 1.0 and MIDI 2.0 through Windows MIDI Services!”
Windows MIDI Services deployment will roll out to supported Windows 11 releases through phased enablement. Test your hardware and DAW workflows, update to the latest Windows build, and evaluate the new MIDI Settings tools. Developers should review the Windows MIDI Services App SDK for integration and take advantage of multi-client, timestamps, and translation features.

Key points from the article:

  • Windows MIDI Services supports both MIDI 1.0 and MIDI 2.0 endpoints.
  • Multi-client allows multiple apps to use the same MIDI device simultaneously.
  • Custom endpoint names and metadata configurable via MIDI Settings app.
  • Built-in loopback enables app-to-app MIDI without extra drivers.
  • High-resolution MIDI 2.0 data auto-translates for MIDI 1.0 apps.

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