How do you validate generated audio before rendering video?

How do you validate generated audio before rendering video?

An audio response is not automatically a usable narration. Validation should check the actual artifact and its relationship to the reviewed script.

Inspect technical properties

Confirm that the output exists, is nonempty, decodes, and has an audio stream with a plausible duration. Check the format against your rendering input contract. Save the validated file durably before declaring the stage complete. A successful HTTP response containing an error document should not be mistaken for audio.

Listen for content problems

Review pronunciation, missing phrases, abrupt cuts, excessive silence, and unexpected language. Compare against the approved script version. For longer narration, sample automated checks can help identify suspicious files, but human listening remains useful for quality assessment. Test an empty response and a deliberately invalid file to ensure validation prevents rendering. Record a clear failure reason so recovery targets the audio stage instead of restarting unrelated work.