normalize-format
Convert audio to a transcription-friendly format — stereo to mono, resample to 16kHz, compress WAV to opus or mp3, reduce bitrate.
Skill by danielrosehill
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/danielrosehill-normalize-format
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Reviews
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Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/normalize-format
What's inside
- Skill name
normalize-format- Description
- Convert audio to a transcription-friendly format — stereo to mono, resample to 16kHz, compress WAV to opus or mp3, reduce bitrate. Use when the user asks to normalize audio format, downmix, resample, compress, or prepare audio for transcription.
- License
- MIT
- Instructions
- 33 lines in SKILL.md · view on GitHub
Files (1)
- SKILL.md
SKILL.md (first lines)
# Normalize audio format Standardize audio for transcription pipelines. Transcription engines generally work best at 16kHz mono, and compressed formats (opus) are faster to upload without quality loss for speech. ## Default transform ```bash ffmpeg -i INPUT -ac 1 -ar 16000 -c:a libopus -b:a 24k OUTPUT.opus ``` - `-ac 1` → mono - `-ar 16000` → 16 kHz sample rate - `libopus @ 24k` → excellent speech quality at ~11 MB/hr ## Variants - **Whisper-native WAV**: `-ac 1 -ar 16000 -c:a pcm_s16le OUTPUT.wav` - **MP3 (compatibility)**: `-ac 1 -ar 16000 -c:a libmp3lame -b:a 32k OUTPUT.mp3` - **Preserve sample rate**: omit `-ar` ## Output convention `<source_stem>.normalized.<ext>` ## Parameters User may specify: - target format (`opus`/`mp3`/`wav`) - bitrate - keep stereo (`--stereo`) - preserve sample rate (`--keep-sr`)
From danielrosehill/Claude-Transcription-Plugin, MIT.
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Signals
- Stars
- 1
- Forks
- 2
- Open issues
- 0
- Last commit (this folder)
- Apr 19, 2026 (6 months ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
normalize-format skill. Agent Mart. https://agentmart.dev/skills/danielrosehill-normalize-format (last updated 2026-10-24)