How do you debug a video with missing audio or captions?
Inspect the artifact and pipeline manifest to locate whether the problem arose before or during assembly.
How do you debug a video with missing audio or captions?
Missing media can result from absent input, incorrect stream selection, failed caption rendering, or an unsupported playback path. Diagnose the stage instead of immediately regenerating everything.
Inspect inputs and output
Confirm the manifest references the intended files and versions. Check that narration plays independently and that the caption source contains valid cues. Use a media probe to inspect the exported container and streams. A file may contain video but no audio, or a subtitle track that the chosen player does not display.
Reproduce with a small fixture
Render a short known audio clip and a few caption cues using the same configuration. Check required fonts and rendering dependencies in the execution environment. Compare the fixture with the failing job to narrow the difference. Record the command or configuration safely, excluding private URLs and credentials. After correcting the issue, verify the complete exported output in the actual target player.
Further reading: ffprobe documentation.
No. Inspect the file and player behavior to distinguish missing audio from playback or level problems.
It isolates configuration and tooling from the complexity of a full generated project.
Container and stream properties such as codecs, dimensions, duration, and whether audio is present.
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