Voice+Tactile
Research
ACM CHI 2020 [Go to Publication URL]
#Tactile Interface #In-car User Experience #Quantitative & Qualitative User Research
Promisingly, driving is adapting to a Voice User Interface (VUI) that lets drivers utilize diverse applications with little effort. However, the VUI has innate usability issues, such as a turn-taking problem, a short-term memory workload, in efficient controls, and difficulty correcting errors.
To over come these weaknesses, I and researchers in KAIST HCI lab (School of Computing) explored supplementing the VUI with tactile interaction for in-car VUI user experience.
As an early result, we present the Voice+Tactile interactions that augment the VUI via multi-touch inputs and high-resolution tactile outputs. We designed various Voice+Tactile interactions to support different VUI in teraction stages and derived four Voice+Tactile interaction themes: Status Feedback, Input Adjustment, Output Control, and Finger Feedforward.
Research
ACM CHI 2020 [Go to Publication URL]
#Tactile Interface #In-car User Experience #Quantitative & Qualitative User Research
Promisingly, driving is adapting to a Voice User Interface (VUI) that lets drivers utilize diverse applications with little effort. However, the VUI has innate usability issues, such as a turn-taking problem, a short-term memory workload, in efficient controls, and difficulty correcting errors.
To over come these weaknesses, I and researchers in KAIST HCI lab (School of Computing) explored supplementing the VUI with tactile interaction for in-car VUI user experience.
As an early result, we present the Voice+Tactile interactions that augment the VUI via multi-touch inputs and high-resolution tactile outputs. We designed various Voice+Tactile interactions to support different VUI in teraction stages and derived four Voice+Tactile interaction themes: Status Feedback, Input Adjustment, Output Control, and Finger Feedforward.


A user study showed that the Voice+Tactile interactions improved the VUI efficiency and its user experiences without incurring significant additional distraction overhead on driving.
We hope these early results open new research questions to improve in-vehicle VUI with a tactile channel.
We hope these early results open new research questions to improve in-vehicle VUI with a tactile channel.