I know that the bridge headset replaces the speakers, but reversing the system would remove a lot of the inherent problems with a system that relies on speech f

I know that the bridge headset replaces the speakers, but reversing the system would remove a lot of the inherent problems with a system that relies on speech for input. I remember using them when I was on the Harbour Bridge what feels at least 5 or 6 years ago - so maybe the tech has developed enough since then. Especially if Google has been throwing resources at it.