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The voices don't come from the browsers themselves, but from operating systems and their underlying TTS APIs, SAPI on Windows, Speech Dispatcher on Linux and AV
by miki123211 3y ago
The voices don't come from the browsers themselves, but from operating systems and their underlying TTS APIs, SAPI on Windows, Speech Dispatcher on Linux and AVSpeechSynthesizer on Apple Devices. If you install a third-party voice compatible with one of these, the browsers will pick that up.