A real-time voice agent, built on a live websocket.
Every interview streams bi-directional audio over a persistent connection — no polling, no page reloads, no dropped context. Here's how the platform holds a natural conversation from first hello to final scorecard.
Under the hood
Four systems working in lockstep, every millisecond.
Streaming speech-to-text
Candidate audio is transcribed continuously as they speak, not in batches after silence.
Sub-300ms voice synthesis
Aria's responses are generated and streamed back before the candidate finishes their thought.
Turn-taking & interruption
The agent detects overlapping speech and yields or continues exactly like a human would.
Context-aware follow-ups
Full conversation state is retained across the call, driving relevant, adaptive questioning.
The connection
One persistent socket. Zero re-connect stutter.
Unlike request-response chat widgets, Aria opens a single websocket for the full interview. Audio frames stream continuously in both directions, so there's no lag spike when the candidate starts speaking again after a pause.
wss:// — streaming, 132ms round trip
Built on templates
The same engine, tuned per role.
Software Engineer
Live coding discussion and system design reasoning.
Product Manager
Prioritization frameworks and stakeholder scenarios.
Data Analyst
SQL reasoning and case-study interpretation.
Global voice coverage
20+ languages with region-tuned voices for consistent candidate experience.
End-to-end encryption
Every audio frame is encrypted in transit and at rest.
Custom agent voices
Clone a brand voice or pick from our curated library — Enterprise plans.