Details

Autor(en) / Beteiligte

• Cox, Anna L.
• Cairns, Paul A.
• Walton, Alison
• Lee, Sasha

Titel

Tlk or txt? Using voice input for SMS composition

Ist Teil von

• Personal and ubiquitous computing, 2008-11, Vol.12 (8), p.567-588

Ort / Verlag

London: Springer-Verlag

Erscheinungsjahr

2008

Quelle

ACM Digital Library

Beschreibungen/Notizen

• This paper reports a series of investigations, which aim to test the appropriateness of voice recognition as an interaction method for mobile phone use. First, a KLM model was used in order to compare the speed of using voice recognition against using multi-tap and predictive text (the two most common methods of text entry) to interact with the phone menus and compose a text message. The results showed that speech is faster than the other two methods and that a combination of input methods provides the quickest task completion times. The first experiment used a controlled message creation task to validate the KLM predictions. This experiment also confirmed that the result was not due to a speed/accuracy trade off and that participants preferred to use the combination of input methods rather than a single method for menu interaction and text composition. The second experiment investigated the effect of limited visual feedback (when walking down the road or driving a car for example) on interaction, providing further evidence in support of speech as a useful input method. These experiments not only indicate the usefulness of voice in SMS input but also that users could also be satisfied with voice input in hands-busy, eyes-busy situations.