Wow & Flutter

A mobile phone-sensor setup aid for approximate platter speed and short-term variation. It reads local motion sensors and is not a calibrated wow-and-flutter measurement.

What this tool does

Use phone motion sensors as a practical setup aid for approximate platter speed and short-term variation.

Inputs:

local phone motion sensor readings
selected platter speed context
phone placement and capture interval

Outputs:

approximate platter speed context
short-term variation estimate
mobile setup feedback for practical adjustment

Engrove Audio Tools

Part of Engrove Audio Tools 3.0, a browser-based turntable, tonearm and cartridge setup toolkit.

Tonearm Match Lab: Estimate cartridge-tonearm resonance frequency and check whether a cartridge, tonearm and tracking force combination falls within the practical setup range.
Compliance Estimator: Estimate a 10 Hz cartridge compliance value from manufacturer specifications so resonance calculations can use a practical low-frequency reference.
Tonearm Geometry Lab: Calculate tonearm alignment geometry for pivoted tonearms, including null points, overhang, offset angle and tracking error across the record surface.
VTA & SRA Lab: Estimate how tonearm height, mat thickness and geometry changes affect stylus rake angle and vertical tracking angle setup.
Data Explorer: Browse active runtime cartridge and tonearm reference data for setup values used by matching, compliance and geometry workflows.
Measurement Lab: Measurement Lab is an advanced desktop workflow for browser audio input, Demo Mode, captured measurement sessions and cautious analysis; it is not a substitute for lab equipment.
Simulator: Interactive 3D teaching simulation with fifteen scenarios for turntable, tonearm, cartridge, geometry, setup forces, resonance, record defects and isolation. It is not a measurement tool.
Turntable Level: Mobile-only setup aid that reads approximate phone tilt to help level a turntable platter; it is a practical reference, not a calibrated inclinometer.
Engrove Audio Tools — Mobile Lite: Phone-friendly Engrove Audio Tools mode for small touch screens and local phone sensors, exposing only the tools that are practical beside audio equipment.
Mobile Lite calibration: A guided, one-off sensor calibration for Mobile Lite tools. Four short movements measure how this phone\u2019s motion sensors are mounted; the result is stored on the phone and never leaves it.
Vibration: Compare phone-recorded motion before, during and after controlled loudspeaker excitation, with signal identification and repeatability checks.
Optical rate calibration: Reference a phone rotation sensor using repeated camera scene recurrence at 33⅓ and 45 RPM. Local profile with explicit compatibility limits.

Wow & Flutter

What this tool does

Agent and crawler resources