Universal Test Record Utility Tool

Test record database and what it does

This utility is “universal” because it doesn’t assume a single test LP. Instead, it ships with a small built‑in database of common test records (brand + model) and a set of track presets that map typical bands—like 1 kHz tones, left‑only/right‑only crosstalk tracks, wideband noise, and the classic 3150 Hz speed tone—to the right measurement view.

When you pick a record and then choose a preset, the page pre-fills the “what am I playing?” details (tone vs. noise/program, target frequency, and the expected channel content). That lets the analyzer focus on what matters: channel balance, stereo separation (crosstalk), azimuth/phase, rumble/noise floor, and wow & flutter—without you constantly reconfiguring controls. If your LP isn’t listed, select Custom / Not listed and type the band frequency (or just use spectrum/spectrogram).

The record list is intentionally lightweight: it’s meant to cover the most common “setup” workflows rather than recreate a lab instrument. In practice, you can use nearly any vinyl test record (or even music) to diagnose issues: hum at 60/120 Hz, mechanical rumble, mistracking artifacts, or channel imbalance. The database simply makes it faster to jump to the right view and reduces mistakes when you’re repeating measurements.

A few practical examples:

• Balance: play a 1 kHz “both channels” tone to confirm left/right levels match through your phono chain.
• Crosstalk / separation: use left‑only and right‑only tracks to see how much signal bleeds into the opposite channel.
• Azimuth & phase: check phase/correlation (and the scope) while playing in‑phase / out‑of‑phase bands; small adjustments can tighten imaging.
• Speed, wow & flutter: play a 3150 Hz band and use the speed view to estimate average speed error and short‑term modulation.
• Noise & rumble: use “silent” grooves or wideband noise to spot low‑frequency rumble, motor noise, and broadband hiss.

All of the preset data lives in the page itself and is saved locally when you edit it—nothing is uploaded. If you want to keep your own curated library (or share it), use the import/export section to move presets between devices. Over time, that becomes your personal “test record playbook” for repeatable turntable setup checks.