TTS Playground
REALTIME_API_KEY
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Hear voice
Use my own reference clip
Reference clip
· wav · mp3 · m4a · ≤ 10s
Transcript
· exact words spoken in the clip
Voice
Instruction
· plain-language delivery direction · optional
Design the voice from this description alone
· ignore the reference clip
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Recent sessions
· real prod conversations with TTS activity, newest first
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Session ID
· realtime session id · its assistant turns, chunked like prod, are what was fed to TTS
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I'm a helpful voice assistant built by Hark AI Lab, founded by Brett Adcock in 2025.
Prod chunking
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24 kHz · mono
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