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문서 편집 접근성 향상을 위한 음성 명령 기반 모바일 어플리케이션 개발

Voice Activity Detection Algorithm using Wavelet Band Entropy Ensemble Analysis in Car Noisy Environments

  • Park, Joo Hyun (Dept of IT Engineering, Sookmyung Women's University) ;
  • Park, Seah (Dept of IT Engineering, Sookmyung Women's University) ;
  • Lee, Muneui (Dept of IT Engineering, Sookmyung Women's University) ;
  • Lim, Soon-Bum (Research Institute of ICT Convergence, Dept of IT Engineering, Sookmyung Women's University)
  • 투고 : 2018.05.09
  • 심사 : 2018.10.19
  • 발행 : 2018.11.30

초록

Voice Command systems are important means of ensuring accessibility to digital devices for use in situations where both hands are not free or for people with disabilities. Interests in services using speech recognition technology have been increasing. In this study, we developed a mobile writing application using voice recognition and voice command technology which helps people create and edit documents easily. This application is characterized by the minimization of the touch on the screen and the writing of memo by voice. We have systematically designed a mode to distinguish voice writing and voice command so that the writing and execution system can be used simultaneously in one voice interface. It provides a shortcut function that can control the cursor by voice, which makes document editing as convenient as possible. This allows people to conveniently access writing applications by voice under both physical and environmental constraints.

키워드

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Fig. 1. Screenshot of (a) Speechnotes (b) Google Docs.

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Fig. 2. Transition Diagram of the System.

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Fig. 3. System Flow Diagram.

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Fig. 4. First page of Application and Command List.

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Fig. 5. Screenshot of Application (a)Memo Writing (b) Command List (c) Shortcut Screen.

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Fig. 6. Success Rate of Voice Command Group, 95% Confidence Interval.

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Fig. 7. Document for Editing (a) Uneditied Document (b) Document with Calibration Marks (c) Final Edited Document * The red mark indicated where the edit should be performed.

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Fig. 8. Evaluation Results for Cursor Function, All Charts Include Standard Deviation. (a) Task Completion Time by Applications (b) Success Rate for 28 Sign of Correction by Applications

Table 1. Functions and corresponding commands Provided by the System

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Table 2. Configuration of Tasks for Evaluation

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Table 3. A table showing whether the task can be per-formed in each application

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참고문헌

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  2. H.Y. Kim and S.B. Lim, “Accessibility Automatic Inspector Library for EPUB and its Components,” Journal of Korea Multimedia Society, Vol. 20, No. 2, pp. 330-335, 2017. https://doi.org/10.9717/KMMS.2017.20.2.330
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  5. Google Docs, https://docs.google.com/ (accessed Mar., 5, 2018).
  6. SpeechNotes, https://play.google.com/store/apps/details?id=co.speechnotes.speechnotes (accessed Mar., 12, 2018).
  7. Strabase, Platform Big 3's Voice Recognition UI Competitive Landscape Analysis, Strabase Issue Alert, 2011.
  8. J.H. Park, S.B. Lim, and J.W. Lee, “A Voice Annotation Browsing Technique in Digital Talking Book for Reading-disabled People,” Journal of Korea Multimedia Society, Vol. 16, No. 4, pp. 510-519, 2013. https://doi.org/10.9717/kmms.2013.16.4.510
  9. D.G Jeong, “Trend on Artificial Intelligence Technology and Its Related Industry,” Korea Institute of Information Technology Magazine, Vol. 15, No. 2, pp. 21-28, 2017. https://doi.org/10.14801/jkiit.2017.15.5.21
  10. Android Speech API, https://developer.android.com/reference/android/speech/package-summary.html (accessed Mar., 20, 2018).