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feat(transport): set project tempo by tapping a pulse (phase 97)

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Johannes Findeisen 2026-11-06 02:09:02 +01:00
commit b7a4a1acd4
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docs/CREATIVE_WORKFLOWS.md
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@ -61,3 +61,13 @@ fader and before its bus, including the effects' output. Green bars release at
it. Stopped, offline or missing-track readings show the -90 dBFS floor. Changing
tracks clears the indicator. These are sample peaks, not true-peak or loudness
measurements. The display shares the mixer's existing backend snapshot read.
## Tap tempo
Tap the transport **Tap** button at a quarter-note pulse. The estimator averages
the last four valid intervals and accepts 20–300 BPM. The first tap primes it;
a pause longer than three seconds restarts it. Too-fast or backward timestamps
are ignored. Each accepted tempo is an undoable edit and stops playback before
preparation; tapping is unavailable while recording. New/Open resets tap history.
The estimator uses monotonic control-thread time, with no audio-callback clock
access or allocation. Tap timing is not a beat detector or MIDI clock sync.