Per-channel, per-frame VAD observation emitted by StreamingTranscriber when running
in dual-channel mode. ts is stream-relative milliseconds, derived from the
per-channel sample counter — the same reference frame as StreamingWord.start /
.end, so per-word lookups need no conversion.
Per-channel, per-frame VAD observation emitted by
StreamingTranscriberwhen running in dual-channel mode.tsis stream-relative milliseconds, derived from the per-channel sample counter — the same reference frame asStreamingWord.start/.end, so per-word lookups need no conversion.