Ce qui s'est passé: Perceived TTFA: the Coval TTS latency benchmark

Coval TTS benchmark now measures perceived latency including leading silence, exposing models that emit inaudible audio before speech starts.

Pourquoi ça compte: Perceived TTFA: the Coval TTS latency benchmark

Matters for engineers building voice applications where user-perceived responsiveness depends on when actual sound reaches the speaker.

Vigilance: Perceived TTFA: the Coval TTS latency benchmark

Historical benchmark rows before this methodology change are not comparable; the metric shift revealed that some fast models felt slow due to silence padding.

Dans l'actualité

Perceived TTFA: the Coval TTS latency benchmark

Gradium · Publié le 9 septembre 2026 · 3 min de lecture

En 30 secondes

Ce qui s'est passé: Coval TTS benchmark now measures perceived latency including leading silence, exposing models that emit inaudible audio before speech starts.
Pourquoi ça compte: Matters for engineers building voice applications where user-perceived responsiveness depends on when actual sound reaches the speaker.
Vigilance: Historical benchmark rows before this methodology change are not comparable; the metric shift revealed that some fast models felt slow due to silence padding.

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latency
benchmark

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