Confined to a wheelchair, he USES an advanced computer synthesizer to speak.

因为受到轮椅的限制，他使用着一台先进的电脑合成器讲话。

youdao

He lived with a hole in his throat, spoke through a computer synthesizer, typed words by batting his eyes as a sensor picked up the movement.

他的喉咙开了个洞，说话要靠一只电脑合成器的帮助，笔录靠一台传感器根据他眨眼睛的变化来作出判断。

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Hawking, who is only able to speak through a computer-generated voice synthesizer, has a neuro muscular dystrophy that has progressed over the years and left him almost completely paralyzed.

霍金只能借助电脑语音合成器来讲话，他患有神经性肌肉萎缩症，并且症状逐年加重，直至几乎完全瘫痪。

youdao

One MT reader says "The chip sounds very good with delicious robotic feeling, " and he's planning to build a "computer controlled musical speech synthesizer" around it.

ENGADGET: Music Thing: Singing speech synthesizers

Often the only reason that someone can tell that a computer is playing is because the synthesizer that produces the actual notes is not that good.

ECONOMIST: Musical computers

So what's the future now that anyone almost can own a synthesizer in the form of some of the computer programs, KaBoom?

NPR: Hi-Tech DJ's Trade Discs for Laptops