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audio-diagnostician

Analyze WAV audio stems for phase, clipping, noise, and masking issues.

24|Updated Apr 27, 2026
Search Tags:#audio analysis#phase alignment#stem diagnostics#loudness & clipping#noise & hum detection#frequency masking#mix brief generation
One-click install
npx skills add https://github.com/fadelabs/phantom --skill audio-diagnostician
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: audio-diagnostician
Source: https://github.com/fadelabs/phantom/tree/main/plugin/skills/audio-diagnostician
Command: npx skills add https://github.com/fadelabs/phantom --skill audio-diagnostician

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

It finds audio engineering issues in your stems before you waste time mixing by measuring phase, loudness/headroom, noise/hum, clipping risks, and frequency masking.

Core Features & Use Cases

  • Pre-mix diagnostic sweep: Runs Phantom MCP diagnostic tools across stem files and catalogs issues by severity (dealbreaker/significant/moderate/minor), including sample-rate mismatch, silent stems, bit-depth/headroom flags, noise/hum/DC offset, and lossy codec artifacts.
  • Phase, polarity, and stereo validation: Checks polarity inversion, time/phase alignment for multi-mic recordings, and validates mid/side encoding to avoid false phase alarms.
  • Frequency masking & mix brief generation: Computes pan-aware masking between stems and produces a structured mix brief with per-stem summaries, a masking map, and an explicit processing order for downstream skills.

Quick Start

Ask Phantom to run audio-diagnostician on your provided WAV stem files (or a directory of WAVs) to generate a prioritized mix brief of problems and recommended fixes.

Frequently Asked Questions about audio-diagnostician

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I diagnose phase alignment and clipping issues in audio stems before mixing?▼

Yes, frequency masking analysis computes pan-aware masking conflicts between instruments and produces a structured mix brief with an explicit processing order for downstream skills to resolve overlapping frequencies.

How do I detect noise, hum, and DC offset across multiple WAV stem files?▼

Yes, stereo integrity validation checks polarity inversion and validates mid/side encoding to avoid false phase alarms, ensuring accurate time and phase alignment for multi-mic recordings before mixing.

What is the best way to generate a structured mix brief from raw audio stem diagnostics?▼

Yes, by running multi-stem masking and batch diagnostic tools, the analysis identifies dealbreaker and significant issues like bit-depth flags or DC offset, allowing you to prioritize critical stem fixes before mixing.

Does audio stem diagnostic analysis work with multi-mic recordings and mid/side encoding?▼

Yes, audio stem diagnostic analysis works with multi-mic recordings by checking time and phase alignment, and it validates mid/side encoding specifically to avoid triggering false phase alarms during the diagnostic sweep.

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