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Speechtek West 2007 1 Luisa Cordano 1 February 21, 2007 Speechtek West 2007 Text-to-Speech for the less fortunate: from talking cellular phones to augmentative.

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Presentation on theme: "Speechtek West 2007 1 Luisa Cordano 1 February 21, 2007 Speechtek West 2007 Text-to-Speech for the less fortunate: from talking cellular phones to augmentative."— Presentation transcript:

1 Speechtek West 2007 1 Luisa Cordano 1 February 21, 2007 Speechtek West 2007 Text-to-Speech for the less fortunate: from talking cellular phones to augmentative alternative communication devices Luisa Cordano

2 Speechtek West 2007 2 Luisa Cordano Overview  What is AAC?  AAC users and requirements  AAC solutions and devices  The importance of speech technologies  The role of the speech technology designer  Loquendo’s experience  Case studies and real deployments

3 Speechtek West 2007 3 Luisa Cordano What is AAC? AACaugmentative and alternative communicationAAC is augmentative and alternative communication Defined as: 1) The supplementation or replacement of natural speech and/or writing using aided and/or unaided symbols... 2) The field or area of clinical/educational practice to improve the communication skills of individuals with little or no functional speech." (Lloyd, L.L., Fuller, D.R., & Arvidson, H.H. (1997) Augmentative and Alternative Communication AAC is a field of endeavor addressing the expressive communication needs of people with significant speech disability. AAC interventions range from no technology (gestures, signs) to low technology (communication board, wallet) to high technology (voice output communication aids). Individuals may be recommended several AAC systems over a lifetime. Therefore, how systems handle this transition and maintain consistency when change occurs is important to achieving long-term effective communication.

4 Speechtek West 2007 4 Luisa Cordano Who needs AAC? The Users Users Individuals with severe communication disorders and for whom gestural, speech and/or written communication is temporarily or permanently inadequate to meet all of their communication needs, for example: –Blind, visually impaired and elderly –Speech-impaired (e.g. Stroke (i.e. aphasic, dysartric), accident, brain tumor, anoxia, Amytrophic Lateral Sclerosis (ASL ), Lou Gehrig’s Disease,…) –Developmental causes (e.g. prenatal, perinatal, congenital or genetic problems) –Parkinson disease –Spinal cord injury

5 Speechtek West 2007 5 Luisa Cordano User requirements depends on impairement No use of hands mouth sticks, headsticks, switches, eye-pointing No read and spell picture and graphic symbols e.g.PCS + speech generation On wheelchair large communication devices Walking small and light aids Who needs AAC? The Use Requirements

6 Speechtek West 2007 6 Luisa Cordano Scope and Goals of AAC AAC in everyday life Speech Speech + AAC supporting users with impairments or disabilities express themselves - To express themselves, their needs and requests, their ideas and feelings -Compensate severe difficulties in natural expression -Assist in maintaining existing competencies -Empower life skills and independence -Improve social networking and inclusion gesture and body language facial expressions writing manual signs

7 Speechtek West 2007 7 Luisa Cordano Scope and Goals of AAC The ATIA reports that people who rely on AAC indicate that the two most important things for them are:  Saying EXACTLY what they want to say, and  Saying it as fast as they can The ultimate goal of AAC is: The highest performance communication possible

8 Speechtek West 2007 8 Luisa Cordano Types of AAC solutions Topic Vocabulary speech –Organized set of symbols and/or text that allows a quick generation of speech Symbolic Aid symbols –Communication via symbols such as PCS, PICTO and photos Text-based aid text –Communication via text (e.g. word prediction, completion etc.) Dynamic screen –Communication via screen changes on selection basis

9 Speechtek West 2007 9 Luisa Cordano Growing variety and complexity of communication and computing devices Target: full age range, no economic, ethnic or gender boundaries Communications Devices: –SGD: Speech Generating device, used by an individual to communicate more effectively with others, through printed words, speech output, picture or combinations of these. –From basic components and fundamental language functions to computer-like functions and control household appliances. –Primary or supplementary mode of communication, customizable Types of AAC devices: communication aids

10 Speechtek West 2007 10 Luisa Cordano Features and categorization –Speech Output - Digitized (recorded human speech) or Synthesized (electronic conversion of text into speech). –Message Type - Prerecorded (messages that are stored) or Message Formulation (can spontaneously create novel messages). –Recording Time - less than or equal to 8 minutes, greater than 8 minutes, or based on the memory size of the device in general (e.g., 64 MB card). –Access Method - Direct Physical Contact with Device or Multiple Access Methods (e.g., switch, mouse, joystick, etc.). –Message Formulation Technique - Spelling only or Spelling and Other Methods. AAC devices

11 Speechtek West 2007 11 Luisa Cordano The role of the Speech Technology Supplier Improve quality and naturalness of speech generation: –Improve intelligibility –Improve intonation and expressivity –Improve flexibility of the overall application Study user requirements with speech therapists and with selected sample of users Identify aspects that could be neglected in usual applications, but could be critical for particular populations of user (e.g. flexibility in speech rate, articulation, etc…) Be able to evaluate and compare the speech technology not only with respect to usual applications (such as navigation, advertising, etc…), but also with respect to more critical requirements

12 Speechtek West 2007 12 Luisa Cordano The importance of speech technologies Scope –Allow the most effective communication possible for the individual enabling them to say EXACTLY what they want Important Features –Different languages –Expressivity –Natural sounding –High Intelligibility –Control proposals

13 Speechtek West 2007 13 Luisa Cordano Loquendo’s experience Thanks to Extensive and detailed research on the sector User trials Close partnership with our customers Continuous feedback loops Has become a leading player on this market

14 Speechtek West 2007 14 Luisa Cordano Loquendo Language offer LanguageFemaleMale English US  English UK  Spanish (Castillian)  French  German  Italian  Greek  Portuguese  Swedish  Dutch  Polish  Brazilian Portuguese  American Spanish  Mexican  Chilean  Argentinean  Chinese (Mandarin)  Valencian (bilingual)  Catalan (bilingual)  The 2007 roadmap sees the development of 4 new languages

15 Speechtek West 2007 15 Luisa Cordano Expressive and Lifelike Voices Loquendo TTS allows for the highly emotive pronunciation, creating extremely natural sounding speech. An easy-to-use prompt editing provides the user a repertoire of "expressive cues". Common phrases and interactions are pronounced with a natural and colorful intonation, to express intention (to confirm, doubt, exclaim, thank, etc.). The same sentence can be pronounced using different styles and intonations, from neutral to emphatic, from sad to amazed. Figures of speech, such as greetings and exclamations ("hello!", "oh no!", 'I'm sorry!"), interactions ("Oh!", "Well!", "Hum"..) and paralinguistic events (e.g. breathing, coughing, laughter, etc.) LA US

16 Speechtek West 2007 16 Luisa Cordano Each of our voices is able to speak any other available language! This means that for example, our Italian voice can speak English with an Italian accent, or a French voice speak German with a French accent. This unique and patented feature is extremely useful for reading when you are out of your home country or simply for reading foreign names in a book or in any text. Loquendo Mixed language capability™

17 Speechtek West 2007 17 Luisa Cordano Underlying Feature: Phonetic Mapping German Voice Spanish Voice French Voice Applies the foreign language grapheme-to-phoneme transcription- rules to the foreign text, and then maps the transcribed phonemes onto those of the voice's native language in order to access its acoustic units  Approximate Pronunciation (speaker maintains his native-tongue phonological system when pronouncing foreign words)

18 Speechtek West 2007 18 Luisa Cordano Loquendo’s Experience: real multilingual deployments Blind Associations –ONCE (Spain) –UIC (Italy) Assistive device providers –Intaal (Touchspeak) –Oralys –Onewrite (Cyrano communicator) –Code Factory (Mobile Speak) –Voice Systems –BAUM (Poet) –…..

19 Speechtek West 2007 19 Luisa Cordano Loquendo’s Experience: blind and visually impaired Italian National Research Council Official suppliers to the Italian and Spanish National Blind Associations

20 Speechtek West 2007 20 Luisa Cordano Loquendo’s Experience: AAC devices Text to Speech Pen or fingers

21 Speechtek West 2007 21 Luisa Cordano Oralys: Pocket PC Communicator The Oralys Communicator works on the basis of mental imagery known as, active ideography, combined to multi-sensory elements using sound and symbols. It enables to communicate quickly and effectively, with a simple touch. The Communicator holds over 3.500 ideograms with the possibility of 12.000.000 connections/ sentences. Text to Speech Pen or fingers

22 Speechtek West 2007 22 Luisa Cordano OneWrite: Cyrano communicator Cyrano, an augmentative communication device, is a hand-held, portable software application designed to aid individuals with speech- impairments to communicate through a series of customizable images, text, and synthesized voices.

23 Speechtek West 2007 23 Luisa Cordano Intaal: TouchSpeak™ & TypeSpeak™ TouchSpeak is the result of nearly 10 years of on-going development and continuous refinement of the original 1996 PCAD Consortium. TouchSpeak has been specifically designed and developed as an AAC communication aid. Although originally primarily dedicated to people with aphasia, it can comfortably be adapted for either higher more functioning clients, or those with lower cognition and functions

24 Speechtek West 2007 24 Luisa Cordano E-Values e-book reader E-library Voice AppLication for eUropean blind, Elderly and Sight-impaired The purpose of the eVALUES service is to improve the possibilities for education and jobs for blind and sight impaired, increasing the assimilation in the society. eVALUES does this by providing a Trans-European e-Library service based on Internet for Visually Impaired, to improve the access to written material. The service uses Text-To-Speech for the content provisioning on a portable hand-held PDA, which enables mobility.

25 Speechtek West 2007 25 Luisa Cordano Code Factory’s mobile screen readers

26 Speechtek West 2007 26 Luisa Cordano Code Factory’s mobile screen readers Demo Video

27 Speechtek West 2007 27 Luisa Cordano Thank you for your kind attention. Questions? Luisa Cordano Sales Manager Embedded Technologies luisa.cordano@loquendo.com ph: +39 011 2913442


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