Unverified60% confidenceFactExact time
The industry generally considers the acceptable upper limit for TTFT in real-time voice scenarios to be approximately 200–300 milliseconds.
2
Sources
60%
Confidence
Long-term
Relevance
7/11/2026
First Seen
Sources
Related Claims
VerifiedThe human ear's discrimination threshold for inter-room audio synchronization delay differences is approximately 30 milliseconds.75% similarUnverifiedReal-time factor (RTF) refers to the ratio of the time required to process audio to the duration of the audio itself; an RTF less than 1 means processing is faster than real time; Parakeet's RTF is 0.014 and Whisper's RTF is 0.095.72% similar
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