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Hands-free Eyes-free Text Messaging. Derek Woodman, Jeffrey Gehring , Abdullah Alshalan Mobile Computing Fall 2010. Introduction. Our goal was to make an android application that makes it save to drive while texting Common place to have a hand-free system for placing phone calls
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Hands-free Eyes-free Text Messaging Derek Woodman, Jeffrey Gehring, Abdullah Alshalan Mobile Computing Fall 2010
Introduction • Our goal was to make an android application that makes it save to drive while texting • Common place to have a hand-free system for placing phone calls • We are delivering a system that does this for texting • The system is hands-free and eyes-free so the driver still focus on driving
How? • We used several APIs available in the android operating system • TTS – text to speech • STT – speech to text • Messaging API • Used Android because it is free and had access to lab phones • Used APIs because well documented and didn’t have to write our own • Android provides the tools • We put them together and performed testing.
Application Demo • In class demo of SafeText • Prepare to be amazed!
Testing • Most papers we have seen are concerned with how fast or accurate the speech system works • Wefocused on how well it improves the user’s attention – the main goal! • Our testing focused on the user’s reaction time.
Stop Light Simulator • Shown picture of a stoplight • The light will change periodically • User asked to react to the light changing • Each user was tested under the following conditions • No texting • Regular texting • Voice texting • Measure the reaction time
Stop Light Simulator http://www.youtube.com/watch?v=_d3em1pdBcU
Discussion • Our test shows that our application improves the reaction time of users while texting • Reaction time reduced by more than half • Android’s speech recognition was better than expected. • Issues with Android – learning curve • Several threads running at once • Have to use function call backs to make sure processing has finished