Compare iconic/visualized ability to echoic recall/synthesis. Audio for humans contains thought, in speech. So hearing an engine running in mind is similar to v

Compare iconic/visualized ability to echoic recall/synthesis. Audio for humans contains thought, in speech. So hearing an engine running in mind is similar to visualizing a bus. But hearing synthesized voices is another matter entirely. I suppose the combo of the two would indeed be challenging (a talking bus for example).