Abstract
This study was designed to determine the acceptable mixture level of key and speech inputs in a bimodal interface in which users were permitted to use both key and speech input systems. The mixture level was a controlled experimental variable. Five mixture levels were used: 0%, 25%, 50%, 75%, and 100%. The experimental task was to edit a document. The 0% mixture level meant that the participant performed an editing task using only the keyboard. At the 100% mixture level, the participant performed an editing task using only speech input. After each experimental condition had been tested, the participants' mental workload was also measured using the National Aeronautics and Space Administration-Task Load Index. The results suggest that the mixture level between 25% and 50% was acceptable in view of both the completion time and workload.
| Original language | English |
|---|---|
| Pages (from-to) | 339-348 |
| Number of pages | 10 |
| Journal | International Journal of Human-Computer Interaction |
| Volume | 11 |
| Issue number | 4 |
| Publication status | Published - 1999 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Human-Computer Interaction
- Human Factors and Ergonomics
- Psychology(all)
Cite this
Identification of an acceptable mixture of key and speech inputs in bimodal interfaces. / Murata, Atsuo.
In: International Journal of Human-Computer Interaction, Vol. 11, No. 4, 1999, p. 339-348.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Identification of an acceptable mixture of key and speech inputs in bimodal interfaces
AU - Murata, Atsuo
PY - 1999
Y1 - 1999
N2 - This study was designed to determine the acceptable mixture level of key and speech inputs in a bimodal interface in which users were permitted to use both key and speech input systems. The mixture level was a controlled experimental variable. Five mixture levels were used: 0%, 25%, 50%, 75%, and 100%. The experimental task was to edit a document. The 0% mixture level meant that the participant performed an editing task using only the keyboard. At the 100% mixture level, the participant performed an editing task using only speech input. After each experimental condition had been tested, the participants' mental workload was also measured using the National Aeronautics and Space Administration-Task Load Index. The results suggest that the mixture level between 25% and 50% was acceptable in view of both the completion time and workload.
AB - This study was designed to determine the acceptable mixture level of key and speech inputs in a bimodal interface in which users were permitted to use both key and speech input systems. The mixture level was a controlled experimental variable. Five mixture levels were used: 0%, 25%, 50%, 75%, and 100%. The experimental task was to edit a document. The 0% mixture level meant that the participant performed an editing task using only the keyboard. At the 100% mixture level, the participant performed an editing task using only speech input. After each experimental condition had been tested, the participants' mental workload was also measured using the National Aeronautics and Space Administration-Task Load Index. The results suggest that the mixture level between 25% and 50% was acceptable in view of both the completion time and workload.
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UR - http://www.scopus.com/inward/citedby.url?scp=0033261236&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0033261236
VL - 11
SP - 339
EP - 348
JO - International Journal of Human-Computer Interaction
JF - International Journal of Human-Computer Interaction
SN - 1044-7318
IS - 4
ER -