CHI '93 Proceedings of the INTERACT '93 and CHI '93 Conference on Human Factors in Computing Systems
Assets '96 Proceedings of the second annual ACM conference on Assistive technologies
The design and evaluation of a high-performance soft keyboard
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Expert Chording Text Entry on the Twiddler One-Handed Keyboard
ISWC '04 Proceedings of the Eighth International Symposium on Wearable Computers
ISWC '05 Proceedings of the Ninth IEEE International Symposium on Wearable Computers
Analyzing the input stream for character- level errors in unconstrained text entry evaluations
ACM Transactions on Computer-Human Interaction (TOCHI)
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Usable gestures for blind people: understanding preference and performance
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Enhancing independence and safety for blind and deaf-blind public transit riders
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Brailletouch: mobile texting for the visually impaired
UAHCI'11 Proceedings of the 6th international conference on Universal access in human-computer interaction: context diversity - Volume Part III
BrailleType: unleashing braille over touch screen mobile phones
INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part I
1 thumb, 4 buttons, 20 words per minute: design and evaluation of H4-writer
Proceedings of the 24th annual ACM symposium on User interface software and technology
Blind people and mobile touch-based text-entry: acknowledging the need for different flavors
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Smartphone haptic feedback for nonvisual wayfinding
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
TypeInBraille: a braille-based typing application for touchscreen devices
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Tap2Count: numerical input for interactive tabletops
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
No-look notes: accessible eyes-free multi-touch text entry
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Reducing visual demand for gestural text input on touchscreen devices
CHI '12 Extended Abstracts on Human Factors in Computing Systems
Input finger detection for nonvisual touch screen text entry in Perkinput
Proceedings of Graphics Interface 2012
An evaluation of BrailleTouch: mobile touchscreen text entry for the visually impaired
MobileHCI '12 Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services
PassChords: secure multi-touch authentication for blind people
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
Tapulator: a non-visual calculator using natural prefix-free codes
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
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Eyes-free input usually relies on audio feedback that can be difficult to hear in noisy environments. We present DigiTaps, an eyes-free number entry method for touchscreen devices that requires little auditory attention. To enter a digit, users tap or swipe anywhere on the screen with one, two, or three fingers. The 10 digits are encoded by combinations of these gestures that relate to the digits' semantics. For example, the digit 2 is input with a 2-finger tap. We conducted a longitudinal evaluation with 16 people and found that DigiTaps with no audio feedback was faster but less accurate than with audio feedback after every input. Throughout the study, participants entered numbers with no audio feedback at an average rate of 0.87 characters per second, with an uncorrected error rate of 5.63%.