Private beta · Dubbing sync QC

Catch sync drift before delivery.

DubMetric compares a reference master with a dubbed version and surfaces timing problems that deserve human review — global offset, progressive drift and suspicious local ranges.

Request a private pilot See verified benchmark

Built to support QC teams, not replace editorial judgment.

VERIFIED D1 BENCHMARK

Tears of Steel · controlled defects · 02:15

Measured

Global offset · known defect +150 ms +150.000006 ms

FAIL

REF TEST +150 ms injected

DubMetric measured +150.000006 ms — absolute error 0.000006 ms, confidence 1.0.

Global offsetEarly / late timing

Progressive driftAlignment over time

Local anomaliesReviewable timecodes

QC reportPDF + JSON output

Controlled benchmark

Measured, not mocked.

Tears of Steel was used as open-licensed source material. Known timing defects were injected before analysis, then passed through DubMetric's real product path. The values below are the unmodified D1 outputs.

Tears of Steel · D1 135 sec excerpt

+150 ms known defect → +150.000006 ms measured

Absolute error 0.000006 ms · Confidence 1.0 · QC verdict FAIL

Controlled synchronization defect benchmark · not genuine dubbed-media validation R2 (CC) Blender Foundation | mango.blender.org

Workflow

From two masters to a reviewable signal.

Minimal input. Focused output. DubMetric narrows attention to synchronization issues without pretending to replace professional QC.

01

Upload

Reference master + dubbed version.
Two source files. One comparison.
02

Analyze

Measure offset, drift and suspicious ranges.
Timing evidence is surfaced automatically.
03

Review

Inspect timecodes and export the QC report.
PASS / WARN / FAIL / INCONCLUSIVE.

What it checks

Three failure modes. One review surface.

Each check answers a different synchronization question and returns evidence that a human reviewer can verify.

Global Offset

Detect when the dubbed track is consistently early or late against the reference.

+150.000006 ms

Progressive Drift

Identify alignment that gradually moves away from the reference over time.

+300.009 ms

Local Sync Anomalies

Highlight suspicious time ranges that deserve closer editorial review.

1 FLAG · 100.07 ms

Built for real QC workflows

For teams that deliver dubbed content.

Dubbing studios Localization teams Post-production Audiovisual QC

Private pilot

Test DubMetric on a real synchronization case.

We are looking for a small number of dubbing studios and localization teams to test the private beta on real material under agreed pilot terms.

01 Real-case evaluation 02 Human-reviewed output 03 Direct product feedback