Detected language, or null for silence.
Transcript with boundary whitespace removed and internal punctuation preserved.
Worker and engine metrics; these exclude recording, loading and queue wait.
Engine-reported decoder throughput, in tokens per second.
Engine-reported time to first token, in milliseconds.
Worker copy, inference and normalization time, in milliseconds.
OptionalwordsPresent only with wordTimestamps: true; an empty array for silence.
Normalized completed-clip result. Silence has empty text and a null language.