Audio Quality Check
Diagnoses echo, loudness, SNR, and speech intelligibility in call recordings with real DSP metrics.
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 14, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Aug 10, 2026 · a85ee2a
⚠ The author changed this skill after we tested it. The verdict below describes the version we ran on Jul 14, 2026; it's queued for a re-test.
Ran the bundled analyzer for real on a synthetic dual-track M4A with a 53ms echo injected into the system track: it correctly isolated the echo there (r=0.93 at ~32ms) and reported near-zero cross-track correlation (0.005-0.01), correctly ruling out mic bleed - though it also flagged the clean mic track due to pitch-harmonic aliasing in the synthetic test tone, a false-positive mode the SKILL.md itself discloses (peaks below 0.15 are harmless pitch harmonics; ours were an edge case from an unnaturally pure tone).
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 9/10
- Docs & honesty 5/5
What Audio Quality Check does
Runs a bundled Python script (ffmpeg + numpy/scipy/pyloudnorm/pesq/pystoi/librosa) against dual-track call recordings to measure EBU R128 loudness, autocorrelation-based echo/duplication, cross-track bleed, PESQ/STOI speech quality, and SNR, with documented thresholds for each metric. Triggers when a user wants to check why a recording sounds bad, detect echo/duplication, or compare original vs AEC-processed audio, including Blackbox call recordings.
How to install Audio Quality Check
git clone https://github.com/tenequm/skills
cd skills
mkdir -p ~/.claude/skills
cp -r skills/audio-quality-check ~/.claude/skills/audio-quality-check
Skills live in ~/.claude/skills/ (global) or .claude/skills/
(per-project). Restart Claude Code after installing.
Commands — how to trigger Audio Quality Check
-
/audio-quality-checkDiagnoses echo, loudness, SNR, and speech intelligibility in call recordings with real DSP metrics.
It also activates on plain-language prompts like these:
-
Why does this call recording sound so echoey and muffled? -
Check this dual-track recording for echo, loudness, and SNR issues -
Compare our original and AEC-processed audio to see what improved
Frequently asked questions
- Is the Audio Quality Check skill free?
- Yes. The skill itself is free from tenequm/skills. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Audio Quality Check work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Ran the bundled analyzer for real on a synthetic dual-track M4A with a 53ms echo injected into the system track: it correctly isolated the echo there (r=0.93 at ~32ms) and reported near-zero cross-track correlation (0.005-0.01), correctly ruling out mic bleed - though it also flagged the clean mic track due to pitch-harmonic aliasing in the synthetic test tone, a false-positive mode the SKILL.md itself discloses (peaks below 0.15 are harmless pitch harmonics; ours were an edge case from an unnaturally pure tone).
- What is the Audio Quality Check SkillProof Score?
- 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
- How do I install Audio Quality Check?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Audio Quality Check with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.