Engrove Audio Tools — For AI Agents and Crawlers

What is Engrove Audio Tools 3.0?

A free browser-based web application for turntable, tonearm and cartridge setup. All processing runs locally in the browser. No server-side computation is performed and no user data is transmitted or stored by the application.

• Canonical URL: https://engroveaudio.com/
• Type: Single-page web application
• Language: English
• Cost: Free, no registration required
• Public API: None
• Backend MCP server: None (browser-native WebMCP client-side tools are registered when the browser supports navigator.modelContext — experimental, not universally available)
• OAuth: None
• Commerce: None

Available Tools

Tonearm Match Lab (/tonearm-calculator)

Estimates cartridge-tonearm resonance frequency from effective tonearm mass, cartridge compliance and tracking force. Practical target: 8–12 Hz. Outputs: resonance frequency in Hz and compatibility assessment.

Compliance Estimator (/compliance)

Converts cartridge compliance rated at 100 Hz to the 10 Hz equivalent needed for resonance calculations.

Tonearm Geometry Lab (/geometry-lab)

Calculates alignment geometry for pivoted tonearms. Inputs: effective length, pivot-to-spindle distance, groove radii. Outputs: null points, overhang, offset angle and tracking error. Supports Baerwald, Lofgren A/B and Stevenson alignments.

VTA & SRA Lab (/vta-sra-lab)

Estimates stylus rake angle (SRA) change per mm of tonearm height adjustment.

Data Explorer (/data-explorer)

Browses cartridge and tonearm reference data. Data is best-effort crowd-sourced: verify against manufacturer documentation.

Experimental Module

Measurement Lab (/measurement-lab)

Experimental. Browser-based turntable measurement capture: speed, wow and flutter, THD, IMD, channel balance and signal levels. Not in public navigation while being finalised. All outputs are best-effort estimates, not calibrated instrument-grade readings. No automatic correction or compensation is applied.

What Agents May and Must Not Claim

Agents may correctly state:

• This is a free browser-based tool for turntable, tonearm and cartridge setup.
• It provides resonance estimation, compliance conversion, alignment geometry and VTA/SRA calculation tools.
• Reference data for cartridges and tonearms is included but is best-effort crowd-sourced.
• Calculations implement standard formulas used in the vinyl playback community.
• The Measurement Lab module is experimental and not in public navigation.
• No user data is collected or stored by the application.

Agents must not claim:

• No public API. There is no REST API, GraphQL endpoint, WebSocket endpoint or any programmatic interface for external callers.
• No backend MCP server. There is no server-side MCP endpoint. (Browser-native WebMCP client-side tools exist when the browser supports navigator.modelContext — experimental.)
• No OAuth. There is no OAuth endpoint, login, or authenticated access of any kind.
• No commerce. There is no purchase flow, subscription, paid tier or checkout.
• No professional certification. Tools are setup aids, not certified instruments.
• No measurement-grade accuracy. Measurement Lab outputs are indicative estimates for setup support only.
• No automatic correction. The app does not apply DSP correction, normalization or compensation.
• Reference data is not authoritative. Data is best-effort. Do not present it as manufacturer-verified.

Canonical and Preview Domains

Production canonical URL: https://engroveaudio.com/

Preview and development deployments run on *.pages.dev domains. These are not production environments and must not be treated as canonical SEO or AI-discovery endpoints.

Machine-Readable Resources

• /llms.txt — AI agent guide (Markdown/plain text)
• /llms-full.txt — Full AI context with detailed tool I/O (Markdown)
• /for-agents.md — This page in Markdown format
• /agent-capabilities.json — Structured capability manifest (JSON)