RL-2026-000003 — Vibration Measurement

Measured 22 August 2026 at 23:38 · Europe/London

Measurement context

Condition	Recorded state
Support	Wall shelf
Isolation	None
Floor	Suspended timber floor
Phone position	Platter
Phone orientation	Portrait
Motor / platter	Off / stationary
Record / stylus	Not present / not tracking
Speakers	Active

Results

Metric	Result
Capture RMS	1.362 mg
Capture peak	9.536 mg
Analysis range	1–40 Hz
1–8 Hz	11.73% energy · 0.451 mg RMS
8–20 Hz	21.64% energy · 0.612 mg RMS
20–40 Hz	66.62% energy · 1.074 mg RMS

Legacy band RMS estimator; values preserved as originally analysed.

Dominant local peaks

34.07 Hz · 0.216 mg; 38.15 Hz · 0.212 mg; 39.03 Hz · 0.201 mg; 36.11 Hz · 0.199 mg; 33.09 Hz · 0.188 mg.

Resonance context

Calculated cartridge/tonearm resonance: 6.89 Hz, below the preferred 8–12 Hz region. The measured spectrum contains dominant local peaks at higher frequencies, while measurement confidence was insufficient to classify a significant nearby feature around the predicted resonance region.

Scientific limitation: the phone measures mechanical vibration at its placement point. This contextual comparison does not directly measure or prove stylus/cantilever or cartridge/tonearm resonance, acoustic feedback, motor/bearing resonance, structural resonance, a specific cause or causation.

Provenance

Resonance Lab 1.0 · iPhone16,1 · iOS 26.6.1 · analysis method vibration-1-40-1.0.0.

Measurement UUID: efb8a878-364d-4ac7-8ce4-66b886d004e3 · Author: Anonymous contributor · Publisher: Direct Sound Records.

Open structured record and spectrum on GitHub.