NPCs that actually think
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AI tools for voice
3,708 live tools · ranked by monthly traffic and community votes · dead links removed automatically
DDSP-SVC is an open-source singing voice conversion project that runs on personal computers.
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Kokoro is an open-weight text-to-speech model with 82 million parameters.
43
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Hume EVI, the Empathic Voice Interface, is a voice AI API for building agents that pick up on how a person sounds as well as what they say.
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ElevenLabs API is a developer interface to the company's audio models.
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OpenVoice is an open-source instant voice cloning model created by researchers at MIT and Tsinghua University together with MyShell.
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The OpenAI Realtime API is a developer interface for building voice agents that listen and speak in real time.
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Pipecat is an open-source Python framework for building voice and multimodal AI agents that talk in real time.
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Amazon Polly is a fully managed Amazon Web Services product that converts text into spoken audio on demand.
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Google Cloud Text-to-Speech is an API that turns written text into natural-sounding speech using Google's AI speech synthesis research.
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LiveKit Agents is an open source framework and cloud platform for building voice, video and physical AI agents and running them in production.
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OpenAI TTS is the text-to-speech feature of the OpenAI Audio API, exposed through a speech endpoint that converts written text into lifelike spoken audio.
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The Deepgram Voice Agent API is one real-time API that combines speech recognition, language model orchestration and speech synthesis, so developers do not have to stitch separate services together.
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Piper is a fast, local neural text-to-speech engine that converts text into spoken audio on your own hardware, with no cloud service involved.
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