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REAL v0.3.0-beta.1 - Diagnostic low-latency probing

REAL v0.3.0-beta.1 - Diagnostic low-latency probing Pre-release
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@d1scolor d1scolor released this 16 Jun 23:27
v0.3.0
89acd7f

REAL v0.3.0-beta.1 is a diagnostic-focused release for testing what low-latency shared-mode periods your Windows audio driver actually exposes.

This release is meaningfully different from v0.2.0: instead of only trying the default playback device and reporting success optimistically, REAL now probes endpoints, stream categories, and raw/non-raw modes before selecting a keepalive stream.

What's New

  • Added WASAPI shared-mode latency probing.
  • Added support for probing all active render endpoints.
  • Added probing across default roles, stream categories, and raw processing mode.
  • Added text diagnostic reports.
  • Added JSON diagnostic output for issue reports and hardware comparisons.
  • Added best-stream selection based on successfully initialized low-latency streams.
  • Added a proper event-driven silent render keepalive loop.
  • Added clearer reporting when a driver is hard-limited to 10 ms from user mode.
  • Added HRESULT-aware error output for WASAPI failures.

Usage

Run a diagnostic report:

REAL.exe --probe --all-endpoints

Generate JSON output:

REAL.exe --probe --all-endpoints --json

Start REAL using the best detected endpoint/path:

REAL.exe --all-endpoints

Important Notes

REAL does not patch, replace, or override audio drivers. It asks Windows for the smallest shared-mode engine period that the current endpoint and driver path advertises.

If every tested mode reports:

Min: 10.00 ms

then REAL cannot force that endpoint below 10 ms from a normal user-mode WASAPI shared-mode app.

Some external USB DACs or audio interfaces may expose lower periods, while many Realtek/OEM/laptop driver stacks still report 10 ms as their minimum.

Known Limitations

  • This is a beta diagnostic release.
  • Hardware and driver coverage is still limited.
  • Automatic updates are disabled in this build.
  • Some endpoint names may depend on console/font/language handling.
  • WASAPI exclusive mode, ASIO, and Kernel Streaming are not global shared-mode fixes and are not what REAL currently configures.
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