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Dev.to
Dev.to
7/19/2026
The original title is about perceived latency in voice AI experiences. Let me rewrite this for a mobile feed.

The original title is about perceived latency in voice AI experiences. Let me rewrite this for a mobile feed.

Original: Perceived Latency: The Invisible KPI Killing Voice Experiences

Short summary

This article argues that perceived latency — the silence users experience after speaking to a voice assistant — is an untracked KPI that silently kills adoption. Beyond 700-800ms of unmanaged silence, users perceive the experience as broken, regardless of answer quality. The author distinguishes technical latency from perceived latency and advocates for engineering processing signals (audio/visual cues, interstitial content) to mask wait times, citing examples from Scenaro and Urbansider.

  • Unmanaged silence beyond 800ms causes users to abandon voice assistants, yet no standard analytics tool tracks this gap
  • Perceived latency can be engineered independently from technical latency using processing signals and interstitial content
  • Latency optimization should be treated as a per-scenario trade-off, not a single number to minimize

Generated with AI, which can make mistakes.

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