[user1303836]

Summary

Fixes #33 and #34.

This PR tightens the pitch-tracking path for the guitar/ring-mod use case:

• makes Sensitivity a direct minimum confidence threshold instead of an inverted control
• reduces the YIN analysis hop from about 12 ms to about 3 ms
• changes the low-end analysis window target from 60 Hz to 80 Hz, matching the guitar-focused tracking range
• allows onset analysis on the active signal window before the full low-note window is filled, so higher notes can lock earlier
• resets detector activity state during silence and documents the Sensitivity semantics

Root Cause

Sensitivity was mapped as 1.0 - sensitivity, so higher user values accepted lower-confidence detections. The tracker also waited for the full decimated 60 Hz analysis window before reporting a pitch, which left the first tracked carrier around 33 ms late in the current implementation.

Validation

• ctest --test-dir build --build-config Release --output-on-failure
• cmake --build build --config Release

The local Release build produced:

• build/HdnRingmod_artefacts/Release/VST3/HDN Ring Modulator.vst3
• build/HdnRingmod_artefacts/Release/AU/HDN Ring Modulator.component
• build/HdnRingmod_artefacts/Release/Standalone/HDN Ring Modulator.app