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Evaluation of TTS systems is essential to assess performance. The ITU-T P.85 standard was introduced in 1994 to assess the overall quality of speech synthesis systems. However it has not been widely accepted or used. This paper compares the ITU test to more commonly used tests for intelligibility (semantically unpredictable sentences (SUS)) and naturalness(More)
This paper describes two approaches to assigning prosodic phrase structure and pauses to text and investigates the impact of errors in the assignments for different granularities of prosodic phrase structure. One approach uses a cascaded combination of models trained separately for prediction of prosodic phrase structure and pauses and the other uses a(More)
This paper presents empirical results of the corpus-based study on the relationship between accentuation and referent information status. It was found that there is no one-to-one relationship between " new " vs. " given " information and presence vs. absence of accent. Contrary to the widely spread claim that " given " items appear to be deaccented, the(More)
This paper describes a novel solution which allows to quickly build and develop multi-channel applications. Due to the popularity of a smartphone, a new paradigm of applications called Visual IVR has been emerging recently, where visual navigation replaces the traditional DTMF or voice-enabled dialogue control. The described solution brings a unified(More)
This paper describes a new platform called Lexee developed as part of a cloud-based Angel offering which allows to rapidly develop voice-enabled mobile applications. The solution allows to rapidly build application flows without any significant investments into software or extensive knowledge of programming. The Lexee SDK described in this paper gives(More)
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