Kokoro and Apple voices
Version 1.1.1 includes 19 American English Kokoro voices, with Heart as the default, plus selected Apple system voices installed on the Mac.
Adaptive buffering improves long-document playback, Kokoro highlighting follows synthesized timing, and the reader keeps the spoken word visible automatically.
Export WAV or MP3, or use resumable Smart Chapter Export for a book-length text or PDF.
Requires: macOS 13 or later on Apple silicon.