<ul data-eligibleForWebStory="false">Cal Bryant fine-tuned the Piper TTS AI voice model using a clone of a single phrase created by a commercial TTS voice.The Piper TTS system offers natural-sounding voices and allows for fine-tuning without extensive resources.To generate training phrases, a heavyweight AI model called ChatterBox was used for zero-shot training.After training and verification, the model was successfully tuned and ready for use in the Piper TTS system.