Diagnosis over “all clear”

Rapid pulse exposes lag, speaker↔mic path issues, and duration effects. Single passes are often inconclusive — use continuous or multi-pass tests to converge. A clean “no issue” result is uncommon when you are already hearing a problem.

Lag / latency
Speaker setup
Test duration
Multi-pass needed

What you’re investigating

Heard lag / out of sync Speaker / BT / output path Room / ambient abnormality Unstable / flaky readings Needs longer / repeated tests Other known symptom

Test protocol Pulse intensity

Mark suspected issues, pick a protocol, then Run Setup. Findings build from self-click cal + live/continuous measurement while the pulse is audible to the mic.

Measurement Pipeline Idle

Self-click first (known stimulus pitch 20–22000 Hz) → stabilize levels → continuous ambient / multi-pass → interpret lag, path, and duration effects.

Live path & acoustic findings

Mode: Stimulus only — generate pulse LIVE

Input Level RMS / Peak — dB

RMS — Peak — · SNR —

Tap or play 12+ beats to lock tempo

—

Visual vs beat grid — ms

Heard vs beat (BT) — ms

◄ Ahead (— ms) On Beat (0 ms) Behind ►

Last 32 hits · MAD + 95% CI

Timing Coach (requires metronome running)

Consistency

—

Swing Ratio

—

Hit Spread (MAD / 95% CI)

—

Continuous acoustic findings (EDC from live mic)

C50 (EDC)

—

C80 (EDC)

—

RT60

—

Crest Factor

—

Onset Confidence

—

Continuous readings replace in place. Prefer multi-pass / longer protocols under a rapid pulse before concluding. IR Sweep below is a gated snapshot — separate from live EDC.

Ignore click bleed (±18 ms)

PLL strength 50%

Sync heard clicks to visual beat (uses output latency) VISUAL LEAD

Quality — PLL OFF

Latency (out ↓ / in ↑) —

Timing Benchmark — self-click loopback (uses Click Frequency)

Press Timing Benchmark to run 12 chirps at the current click Hz and measure speaker→mic error.

Sprint 3 — Lab Tools

Snapshot IR: 3× averaged 3 s ESS (40 Hz–8 kHz) with noise gate + coherence — separate from continuous EDC.

Sprint 6: Clock jitter histogram + drift alert, BPM detect confirm (12 onsets), grid-locked IOI, 20-chirp cal with jitter history, peak/RMS meter, tap test audio timing, output device select, and A/B CSV export.