Gradium has announced the open-sourcing of its Phonon text-to-speech (TTS) model, which boasts 31 million parameters and is optimized for on-device implementation. The English version of Phonon, which is packaged in a compact 64.5 MB size, is capable of generating speech in approximately 7 milliseconds on a standard laptop CPU.

This release under the Apache 2.0 license aims to provide developers and researchers with a powerful tool for integrating TTS capabilities into their applications. As on-device models become increasingly important for privacy and performance, Gradium’s Phonon sets a new standard for accessibility and efficiency in TTS technology.


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Frequently asked questions

What is the size of the Phonon TTS model?

The English version of Phonon is packaged in a compact 64.5 MB size.

How fast can the Phonon model generate speech?

Phonon is capable of generating speech in approximately 7 milliseconds on a standard laptop CPU.

Under what license is the Phonon model released?

The Phonon model is released under the Apache 2.0 license.