Real-time speech enhancement for Voice AI

Real-time speech enhancement for Voice AI

Reliable audio input for machines.

Reliable audio input for machines.

Lower WER in real time

Up to 10–25% relative WER reduction across major ASR providers under real conditions.

Reliable turn detection

Reduces interruptions, missed turns, and timing errors in dialogue.

Fewer background insertions

Cleaner input keeps ASR, VAD, and LLM behavior stable and predictable.

Quail

ASR Primer

Speech enhancement designed to improve STT accuracy across challenging environments. Reduce your Word Error Rate by as much as 30%.

Quail VAD

Voice Activity Detection

Stronger, more robust VAD, designed to work without separate de-noising tools. Outperforms Silero VAD, ensuring your voice agent hears everything, even in complex, real-world environments.

Quail Voice Focus

Primary Speaker Isolation

Primary speaker isolation in real-time, suppressing background speech and noise. Cuts insertions by up to ~12% across leading STT models.

One SDK. Integrated in minutes.

Lightweight and fast: 30ms latency, no GPU needed, no ONNX dependency.

Built for your stack

Native integrations for every major framework.

Test now

Drop-in

Try for free now in our Developer Platform

Test models, generate SDK keys and deploy from one dashboard.

SDK Keys interface

Test now

Drop-in

Try for free now in our Developer Platform

Test models, generate SDK keys and deploy from one dashboard.

Test now

Drop-in

Try for free now in our Developer Platform

Test models, generate SDK keys and deploy from one dashboard.

Final logo

Bring real-time audio intelligence into your voice AI stack

Bring real-time audio intelligence into your voice AI stack