Introduction

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Features

• Multilingual: We currently support five languages: English (en), French (fr), German (de), Spanish (es) and Portuguese (pt) for our Text-To-Speech and Speech-To-Text with more languages to come.
• Low-latency: Our servers are based in Europe and in the US, with our expected time-to-first-token is below 300ms when streaming.
• Voice selection: We provide a voice library, with multiple voices to choose from in different languages. You can also clone voices instantaneously using a 10” voice sample.
• Semantic VAD: STT streams include step messages every 80 ms with inactivity probabilities across future horizons, so voice agents can decide when a speaker has actually finished.
• Adaptive delay control: Tune delay_in_frames for the latency/quality tradeoff and use flush at turn boundaries to process buffered audio without waiting for natural silence.