RL-2026-000007 — Vibration Measurement

Measured 24 August 2026 at 20:46 · Europe/London

Measurement context

Condition	Recorded state
Support	Furniture
Isolation	Built-in turntable suspension
Floor	Suspended timber floor
Phone position	Top plate
Phone orientation	Face up
Motor / platter	Off / stationary
Record / stylus	Not present / not recorded
Speakers	Inactive

Results

Metric	Result
Capture RMS	1.087 mg
Capture peak	2.593 mg
Analysis range	1–40 Hz
1–8 Hz	22.23% energy · 0.513 mg RMS
8–20 Hz	30.41% energy · 0.599 mg RMS
20–40 Hz	47.36% energy · 0.748 mg RMS

Dominant local peaks

6.03 Hz · 0.163 mg; 7.20 Hz · 0.138 mg; 17.52 Hz · 0.133 mg; 4.38 Hz · 0.131 mg; 10.02 Hz · 0.127 mg.

Resonance context

Calculated cartridge/tonearm resonance: 7.87 Hz. A local spectral maximum occurs at 7.20 Hz near the predicted resonance region, but measurement confidence was insufficient to classify it as a significant/confident nearby feature.

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-1-40-1.1.0.

Measurement UUID: c9baa8b2-4069-4f52-8bb2-4a7d68108620 · Author: Anonymous contributor · Publisher: Direct Sound Records. The canonical archive documents normalization of the source phone-position token to Schema 2.0.0 value top_plate.

Open the canonical structured record on GitHub.