effects of using a push to talk button for speech user interfaces on visual attention
DESCRIPTION
This is the slideshow I had for NECHFES 2008 student conference. The talk was on training the drivers not to glance down for push-to-talk button.TRANSCRIPT
Effects of using a push-to-talk button for speech user interfaces on visual attention
Authors: Nemanja Memarović, Oszkar Palinko, Andrew Kun
Effects of using a push-to-talk button for speech user interfaces on visual attention
Outline Introduction Problems Goal Hypothesis Approach Results
Effects of using a push-to-talk button for speech user interfaces on visual attention
Introduction
Ambient recognition
Push-to-talk button
VS.
Effects of using a push-to-talk button for speech user interfaces on visual attention
Low speech recognition accuracy Visual attention
What’s thatyou say?
Problems
Worse driving performance
Effects of using a push-to-talk button for speech user interfaces on visual attention
Problems – PTT operation
Effects of using a push-to-talk button for speech user interfaces on visual attention
Problems - Glances
Effects of using a push-to-talk button for speech user interfaces on visual attention
Goal To improve safety by reducing number of glances at the PTT button
Effects of using a push-to-talk button for speech user interfaces on visual attention
Hypothesis 1/2 Verbal instructions
Keep your eyeson the road
Effects of using a push-to-talk button for speech user interfaces on visual attention
Hypothesis 2/2 Warning sticker
Push-to-talk button
Effects of using a push-to-talk button for speech user interfaces on visual attention
Approach 1/2 Experiment setup
Eye tracker Head camera Hands camera
Eye tracker screen camera
Effects of using a push-to-talk button for speech user interfaces on visual attention
Approach 2/2 Experiment design
Primary task - following the lead vehicle Secondary task - speech control of the radio 8 subjects, 4 in each group 2x2x2 design
GroupsWith verbal instructions
Without verbal instructions
SUI solution
PTT Ambient PTT Ambient
AccuracyHigh
Low
1
2
3
4
Interactions for subject 1
Effects of using a push-to-talk button for speech user interfaces on visual attention
GroupsWith verbal instructions
Without verbal instructions
SUI solution
PTT Ambient PTT Ambient
AccuracyHigh
Low
2
1
4
3
Interactions for subject 2
Approach 2/2 Experiment design
Primary task - following the lead vehicle Secondary task - speech control of the radio 8 subjects, 4 in each group 2x2x2 design
Effects of using a push-to-talk button for speech user interfaces on visual attention
Results
Mea
n la
ne p
ositi
on v
aria
nce
(m2 )
Effects of using a push-to-talk button for speech user interfaces on visual attention
ResultsM
ean
stee
ring
whe
el
angl
e va
rianc
e (o
2 )
Effects of using a push-to-talk button for speech user interfaces on visual attention
Results
Mea
n ve
loci
ty v
aria
nce
(m2 /
s2 )
Effects of using a push-to-talk button for speech user interfaces on visual attention
Results
Effects of using a push-to-talk button for speech user interfaces on visual attention
Conclusion
Fewer glances
Further analysis of the data Determining statistical significance
Effects of using a push-to-talk button for speech user interfaces on visual attention
Thank you for your attention!
Questions?