When BART trains pull into stations, a robotic and antiquated-sounding voice announces its arrival and destination. Bay Curious listener Jimmy Tobin has long been baffled by these voices. They're hard to understand, he says, and why is it that in the cities pioneering AI and synthesized speech models our own trains are nearly unintelligible?

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This story was reported by Ana De Almeida Amaral. Bay Curious is made by Katrina Schwartz, Christopher Beale and Olivia Allen-Price. Additional support from Jen Chien, Katie Sprenger, Maha Sanad, Ethan Toven-Lindsey and everyone on Team KQED.

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