Sync Audio to 1080p Video

I’ll send you a 1080p video along with an MP3 track. Your job is straightforward: remove the existing audio completely, drop in my MP3 so it starts right at the first frame, and export the finished piece as an MP4 without touching the picture quality.

Please preserve the original resolution, frame rate, and overall visual fidelity—no compression artifacts or unexpected cropping.

Deliverable
• One full-resolution MP4 with the new audio perfectly in sync from the opening frame to the final second.