Is that something deep learning could tackle? (asking as a complete non-expert in DL) It feels like a similar problem to realistic speech synthesis, and there

Is that something deep learning could tackle? (asking as a complete non-expert in DL) It feels like a similar problem to realistic speech synthesis, and there have been some really impressive TTS demos recently. Athough on that note, how come Google can produce these amazing speech synthesis demos, but Google Maps still sounds robotic when giving directions? Is there some big problem around generalizing or productionizing the technology? Is there some hidden trickery behind the demos?