Production Accuracy of Six Spanish Speech Synthesis Voices for Single Nonsense Words There is a scarcity of research regarding individuals who are members of a linguistic minority and have a disability. A clear example of this is the lack of research of augmentative and alternative communication (AAC) for Spanish speakers, resulting in inadequate services for this population. Thus, as an initial step ... Article
Article  |   April 01, 2013
Production Accuracy of Six Spanish Speech Synthesis Voices for Single Nonsense Words
Author Affiliations & Notes
  • Edward Crawley
    Marywood University, Psychology and Counseling Scranton, PA
  • Disclosure: Bruce Wisenburn and Edward Crawley have no financial or nonfinancial relationships related to the content of this article.
    Disclosure: Bruce Wisenburn and Edward Crawley have no financial or nonfinancial relationships related to the content of this article.×
Article Information
Cultural & Linguistic Diversity / Speech, Voice & Prosody
Article   |   April 01, 2013
Production Accuracy of Six Spanish Speech Synthesis Voices for Single Nonsense Words
SIG 14 Perspectives on Communication Disorders and Sciences in Culturally and Linguistically Diverse (CLD) Populations, April 2013, Vol. 20, 24-36. doi:10.1044/cds20.1.24
SIG 14 Perspectives on Communication Disorders and Sciences in Culturally and Linguistically Diverse (CLD) Populations, April 2013, Vol. 20, 24-36. doi:10.1044/cds20.1.24

There is a scarcity of research regarding individuals who are members of a linguistic minority and have a disability. A clear example of this is the lack of research of augmentative and alternative communication (AAC) for Spanish speakers, resulting in inadequate services for this population. Thus, as an initial step in filling this void, the study presented in this article evaluated the production accuracy of six Western Hemisphere—dialect Spanish speech synthesis voices from three different companies (AT&T, Cepstral, and Loquendo) used in speech-generating devices. Ten native Spanish speakers listened to and selected nonsense words containing a target phoneme from a six-item array displayed on a computer screen. Results showed that for the female voices, Cepstral had a significantly lower accuracy than the other two voices. For males, Loquendo had a significantly higher accuracy. The authors also provide production accuracy of individual phonemes. Conclusions from these data may help manufacturers to improve their systems and help give insight into a device’s functional intelligibility for infrequently used words. Further research is needed to determine the functional intelligibility of these systems. The authors hope that this research encourages further study of issues related to AAC for speakers of a language that is not the majority language.

“We need to think very differently about disability studies. We need to ask which countries and parts of the world we are including in our research.” (Meekosha, 2011, p. 668)

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