Cognitive factors in the evaluation of synthetic speech

Delogu, Cristina; Conte, Stella; Sementina, Ciro

doi:10.1016/s0167-6393(98)00009-0

Cited by 43 publications

(18 citation statements)

References 24 publications

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“…In TTS system tests, accuracy, intelligibility, and naturalness are mentioned as basic categories whereas characteristics such as "overall impression", "listening effort" and "comprehension" etc. are commonly emphasized when rating the cognitive factors of using synthetic speech (Schroeter 2006;Delogu et al 1998) such that "listening difficulty", "comprehension" and "attention" are stated as the criteria. In order to determine whether a French TTS synthesizer is adequate for use in CALL applications, Handley and Hamel (2005) chose "appropriateness", "acceptability" and "comprehensibility" for rating and compared the criteria when the synthesizer is used as a reading machine, a pronunciation model and the voice of a conversational partner for teaching/learning French as a foreign language.…”

Section: Methods and Proceduresmentioning

confidence: 99%

Synthetic speech in foreign language learning: an evaluation by learners

Kang

Katoh

Treviranus

et al. 2008

Int J Speech Technol

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Can synthetic speech be utilized in foreign language learning as natural speech? In this paper, we evaluated synthetic speech from the viewpoint of learners in order to find out an answer. The results pointed out that learners do not recognize remarkable differences between synthetic voices and natural voices for the words with short vowels and long vowels when they try to understand the meanings of the sounds. The data explicates that synthetic voice utterances of sentences are easier to understand and more acceptable by learners compared to synthetic voice utterances of words. In addition, the ratings on both synthetic voices and natural voices strongly depend upon the learners' listening comprehension abilities. We conclude that some synthetic speech with specific pronunciations of vowels may be suitable for listening materials and suggest that evaluating TTS systems by comparing synthetic speech with natural speech and building a lexical database of synthetic speech that closely approximates natural speech will be helpful for teachers to readily use many existing CALL tools.

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Section: Methods and Proceduresmentioning

confidence: 99%

Synthetic speech in foreign language learning: an evaluation by learners

Kang

Katoh

Treviranus

et al. 2008

Int J Speech Technol

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show abstract

“…This work has been accompanied by research on different aspects of the assessment method itself, e.g. scaling (Pavlovic et al, 1990;Delogu et al, 1991;Bappert and Blauert, 1994), test material (Silverman et al, 1990), listener dimensions (Howard-Jones, 1992), cognition (Delogu et al, 1997), or cognitive load (Silverman et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the speech output component of a smart-home system

Möller

Krebber

Smeele³

2006

Speech Communication

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“…Finally, the suitability of the use of reaction time measurement, assumed to provide additional information concerning speech perception, has been shown (Delogu et al, 1998;Apoux et al, 2001;Drgas and Blaszak, in press). The reaction time measurement seems interesting because it is a measure of the processes taking place in higher stages of the hearing tract and this 'response delay' refers to cognitive processes taking place during listening.…”

Section: Discussionmentioning

confidence: 99%

“…In the previous experiments measuring reaction time, words and sentences were used (Delogu et al, 1998;Gatehouse and Gordon, 1990;Hecker et al, 1966;Ralston et al, 1981). In such a situation the result depends not only on the physical parameters of speech signals, but also on the listener's intelligence (Deary et al, 2001) and familiarity with the given word.…”

Section: Speech Materialsmentioning

confidence: 99%