Voice Key Board: Multimodal Indic Text Input Prasenjit Dey Ramchandrula Rahul Ajmera Kalika Bali Hewlett-Packard Labs Sitaram Human Factors International Microsoft Research India nd 24, Salarpuria Arena Hewlett-Packard Labs 310/6, H.R Complex “Scientia”, 196/36 2 Main Adugodi, Hosur Road 24, Salarpuria Arena Koramangala, 5th Block Sadashivnagar, Bangalore-560030, India Adugodi, Hosur Road Bangalore 560095, India Bangalore-560080, India
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[email protected] [email protected] [email protected] ABSTRACT intimidating because they use modalities which are natural to our Multimodal systems, incorporating more natural input modalities everyday human communication. We are therefore motivated to like speech, hand gesture, facial expression etc., can make human- explore the use of multiple modalities to address the problem of computer-interaction more intuitive by drawing inspiration from Indic text input. spontaneous human-human-interaction. We present here a multimodal input device for Indic scripts called the Voice Key Indic scripts such as Devanagari, used for Hindi and other Indic Board (VKB) which offers a simpler and more intuitive method languages, are defined as “syllabic alphabets” in that the unit of for input of Indic scripts. VKB exploits the syllabic nature of Indic encoding is a syllable, however the corresponding graphic units language scripts and exploits the user’s mental model of Indic show distinctive internal structure and a constituent set of scripts wherein a base consonant character is modified by graphemes. The formative principles behind them may be different vowel ligatures to represent the actual syllabic character. summarized as follows [2]: We also present a user evaluation result for VKB comparing it - graphemes for independent (initial) Vs (vowel) with the most common input method for the Devanagari script, - C (consonant) graphemes with inherent neutral vowel a the InScript keyboard.