Audio Sync Tool

The tool computes precise audio-video synchronization offsets by comparing input durations, frame rates, and optional anchor cues. It supports basic start/end alignment or anchor-based alignment for dialed-in cues. Conceptually, it derives a required offset in seconds and converts that to frames using the target video FPS. This enables editors to generate timing cues that can be applied in editing, mastering, or publishing pipelines. By exposing both basic and advanced options, it serves individual creators and production teams who need repeatable, auditable timing decisions across projects. Unique value comes from its explicit handling of anchor-based alignment, drift compensation, and batch-ready outputs, which reduce manual trial-and-error in post-production. Core features include duration-based alignment, anchor-mode alignment, optional drift adjustments, and export-ready timing data for downstream software. Use cases span correcting drift after transcoding, replacing a narration track, syncing music to action, and aligning sound design to cut points. Outputs include a recommended audio delay in seconds, the corresponding frame offset, and an adjusted audio duration for verification. The tool is designed to produce deterministic results across projects, improving efficiency and reducing back-and-forth between editors and sound teams.