send me seminar report on vivoca for people

seminar report for a voice input voice output communication aid for people with severe speech impairment

Abstract
Abstract—A new form of augmentative and alternative communication (AAC) device for people with severe speech impairment—the voice-input voice-output communication aid (VIVOCA)—is described. The VIVOCA recognizes the disordered speech of the user and builds messages, which are converted into synthetic speech. System development was carried out employing user-centered design and development methods, which identified and refined key requirements for the device. A novel methodology for building small vocabulary, speaker-dependent automatic speech recognizers with reduced amounts of training data, was applied. Experiments showed that this method is successful in generating good recognition performance (mean accuracy 96%) on highly disordered speech, even when recognition perplexity is increased. The selected message-building technique traded off various factors including speed of message construction and range of available message outputs. The VIVOCA was evaluated in a field trial by individuals with moderate to severe dysarthria and confirmed that they can make use of the device to produce intelligible speech output from disordered speech input. The trial highlighted some issues which limit the performance and usability of the device when applied in real usage situations, with mean recognition accuracy of 67 % in these circumstances. These limitations will be addressed in future work. Index Terms—Augmentative and alternative communication, automatic speech recognition, dysarthria, voice output communication aid. I.
Citations

910 An introduction to hidden markov models - Rabiner, Juang - 1986 (Show Context)
89 The festival speech synthesis system - Black, Taylor, et al. - 1998 (Show Context)
79 Gaze and eye contact: a research review - Kleinke - 1986 (Show Context)
26 Flite: A Small Fast Run-Time Synthesis Engine - Black, Lenzo - 2001 (Show Context)
11 Dysarthric speakers’ intelligibility and speech characteristics in relation to computer speech recognition - Ferrier, Shane, et al. - 1995 (Show Context)
9 Statetransition interpolation and map adaptation for HMM-based dysarthric speech recognition - Sharma, Hasegawa-Johnson - 2010
9 Automatic speech recognition with sparse training data for dysarthric speakers - Green, Carmichael, et al. - 2003 (Show Context)
7 Rate and Quality of Conversations Using a Text-Storage AAC System: Single Case Training Study - Todman - 2000 (Show Context)
5 Whole utterance approaches - Todman, Norman, et al. - 2008 (Show Context)
5 Automatic speech recognition and training for severely dysarthric users of assistive technology: the stardust project., Clin Linguist Phon 20 - Parker, Cunningham, et al. - 2006 (Show Context)
3 Does speech and language therapy work - Enderby, Emerson - 1995 (Show Context)
3 Challenges in developing a Voice Input Voice Output Communication Aid for People with Severe Dysarthria - Hawley, Cunningham, et al. - 2007 (Show Context)
2 I prefer contact this close: Perceptions of AAC by people with motor neurone disease and their communication partners - Murphy - 2004 (Show Context)
1 Research priorities in augmentative and alternative communication as identified by people who use AAC and their facilitators,” Augmentative Alternative - O’Keefe, Kozak, et al. - 2007 (Show Context)
1 The clinical application of microcomputers in the treatment of patients with severe speech dysfunction - Bloor, Barrett, et al. - 1990 (Show Context)
1 A system for recognition and translation of the speech of handicapped individuals - Sandler, Sonnenblick - 1998 (Show Context)
1 An AAC application using speaking partner speech recognition to automatically produce contextually relevant utterances: Objective results,” Augmentative Alternative - Wisenburn, Higginbotham - 2008 (Show Context)
1 Participant evaluations of rate and communication efficacy of an AAC application using natural language processing - Wisenburn, Higginbotham - 2009 (Show Context)
1 et al., “A speech-controlled environmental control system for people with severe dysarthria,” Med - Hawley - 2007 (Show Context)
1 A voice input voice output communication aid: What do users and therapists require - Palmer, Enderby, et al. - 2010 (Show Context)
1 The effect of three practice conditions on the consistency of chronic dysarthric speech - Palmer, Enderby, et al. - 2004 (Show Context)
1 Handbook of Alternative and Augmentative Communication - Glennon, DeCoste - 1997 (Show Context)
1 Frenchay Dysarthria Assessment,2nded - Enderby, Palmer - 1997 (Show Context)