SideSync: Fix Audio Channel

madebydap

About this app

SideSync is a utility app for correcting videos that only have audio on one side. If your recording only plays through the left or right channel due to a hardware issue, SideSync lets you duplicate that working channel to both sides, producing balanced stereo output.

The workflow is minimal. Select a video from your device, choose which channel (left or right) you want to keep, and the app processes the file to generate a corrected version with audio in both channels. No additional editing steps or configuration required.

This is particularly useful for recordings made with faulty microphones, damaged audio inputs, or devices that captured mono audio incorrectly into a single stereo channel.

Key functions:
- Import video from local storage
- Detect and isolate left or right audio channel
- Duplicate selected channel into stereo (L → LR or R → LR)
- Export corrected video file

SideSync focuses only on fixing channel imbalance. It does not compress, trim, or modify video beyond the audio channel correction.

What’s new

Minimum Viable Product