wjs-syncing-multicam

Synchronize multiple video and audio sources to a common timeline using audio cross-correlation.

114|17|Updated May 11, 2026

Search Tags:#ffmpeg #file synchronization #audio alignment #video synchronization #multi-camera editing

Ready to run

npx skills add https://github.com/jianshuo/claude-skills --skill wjs-syncing-multicam

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: wjs-syncing-multicam
Source: https://github.com/jianshuo/claude-skills/tree/main/wjs-syncing-multicam
Command: npx skills add https://github.com/jianshuo/claude-skills --skill wjs-syncing-multicam

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires polysync, and includes scripts (resource) components.

What problem does it solve?

This Skill addresses the challenge of aligning multiple video and audio recordings of the same event captured by different devices, ensuring that they are in sync with a single common timeline.

Core Features & Use Cases

Multi-Device Synchronization: Align videos and audio recordings from cameras, phones, or separate audio recorders.
Preservation of Originals: Outputs lightweight .sync.json files without re-encoding original files.
Use Case: Perfect for video editors and content creators who need to sync multiple clips for editing without re-encoding.

Quick Start

Use the 'wjs-syncing-multicam' skill by running the 'polysync sync' command, specifying the reference file followed by the source file you wish to align.

Frequently Asked Questions about wjs-syncing-multicam

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

FAQPage Schema

How do I sync multiple video sources using audio alignment?▼

You can sync multiple video sources by running the 'polysync sync' command to align a source file to a reference file. This Skill uses audio cross-correlation to match multiple camera and audio recordings to a common timeline without re-encoding.

How does multi-camera synchronization work without re-encoding video files?▼

Multi-camera synchronization without re-encoding works by generating lightweight .sync.json files instead of altering original media. These files contain the alignment data needed to map video and audio sources to a shared timeline during multi-camera editing.

Can I use ffmpeg for multi-camera editing with partial audio coverage?▼

Yes, you can use ffmpeg for multi-camera editing with partial audio coverage. The Skill supports partial coverage synchronization and is compatible with ffmpeg for consuming the generated alignment data.

Do I need polysync to align separate audio recordings with video?▼

Yes, you need polysync to align separate audio recordings with video. The Skill depends on the polysync command-line interface to execute the audio cross-correlation process and generate the necessary synchronization files.

What's the best way to align video and audio recordings from different devices?▼

The best way to align recordings from different devices is using audio cross-correlation to find a common timeline. By designating a reference file and matching source files against it, you can accurately sync multi-camera setups.