Audio Mastering Cli

What This Skill Does

The Audio Mastering CLI is a professional-grade signal processing utility for OpenClaw that automates the complex post-production workflow for audio and video files. By utilizing the power of FFmpeg and specialized PowerShell automation, this skill enables users to achieve professional, broadcast-ready audio standards without requiring a reference track or expensive DAW software. It applies a sophisticated mastering chain including frequency-shaping (highpass/lowpass), corrective equalization, dynamic range compression, hard-limiting, and dual-pass ITU-R BS.1770-4 loudness normalization. This ensures your media files reach consistent, competitive volume levels while maintaining sonic integrity.

Installation

To integrate this skill into your environment, ensure you have FFmpeg installed and accessible in your system PATH, along with PowerShell enabled. Run the following command in your OpenClaw terminal: clawhub install openclaw/skills/skills/alesys/audio-mastering-cli Once installed, the skill automatically registers its CLI handler, allowing the agent to invoke the mastering scripts directly against your local file system.

Use Cases

This skill is perfect for content creators, podcasters, and musicians who need quick, consistent results. Typical use cases include:

• Preparing podcast episodes for distribution with normalized volume.
• Mastering raw audio field recordings for better clarity.
• Refreshing audio tracks in existing video files without re-encoding the video stream.
• Normalizing a library of audio clips to a consistent -14 LUFS standard for streaming platforms.

Example Prompts

1. "Hey OpenClaw, please master my recent podcast recording located at C:\Users\Name\Desktop\podcast.mp3 and provide me with both the WAV and MP3 versions."
2. "I have a video file named tutorial.mp4 in my downloads folder; use the audio mastering skill to clean up the sound and keep the video quality exactly the same."
3. "Master the file 'session_take_01.wav' using the standard processing chain and report the final loudness stats after completion."

Tips & Limitations

• Audio Quality: While the tool uses dual-pass normalization for high accuracy, it is best applied to source material that is already clean; it cannot fix severe distortion.
• Clipping Prevention: If the CLI output log indicates internal clipping during the EQ phase, consider reducing your source volume before processing or manually adjusting EQ gain settings in the script.
• Video Processing: The tool uses '-c:v copy' to ensure your video stream remains untouched, making this a very fast process for video files.
• OS Requirements: Currently optimized for win32 environments due to the PowerShell dependency.