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.


