Effects of auditory feedback on multitap text input using standard telephone keypad
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Text input in mobile devices is becoming even more important with the increasing amount of text-based services such as mobile email. The keypad input of small mobile devices could benefit from well designed auditory feedback. In this paper three different key feedback sound schemes are studied in multitap input of a standard telephone keypad . In this paper is the effect of three different feedback schemes to the efficiency of text input were studied. Also the user preferences during a two-week usage period were observed.