This paper investigates how matching age of driver with age of voice in a conversational in-vehicle information system affects attitudes and performance. 36 participants from age groups, 55–75 and 18–25, interacted with a conversational system with young or old voice in a driving simulator. Results show that all drivers rather communicated with a young than old voice in the car. This willingness to communicate had a detrimental effect on driving performance. It is hence important to carefully select voices, since voice properties can have enormous effects on driving safety. Clearly, one voice doesn’t fit all.
Bibliographic reference. Jonsson, Ing-Marie / Dahlbäck, Nils (2009): "The effects of different voices for speech-based in-vehicle interfaces: impact of young and old voices on driving performance and attitude", In INTERSPEECH-2009, 2795-2798.