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by vidarh 3828 days ago
Macintalk and narrator.device are both incarnations of SoftVoice's TTS, and descendants of SAM. Since they were both developed on contract, and both for M68k, I'd hazard the guess that the internal TTS engine is substantially the same, and that they both follow SAM's structure fairly closely (I know narrator.device does - it explicitly lets you set formant parameters that mirror SAMs pretty closely)