A new articulatory synthesizer (SAPWindows), with a modular and flexible design, is described. A comprehensive acoustic model and a new interactive glottal source were implemented. Perceptual tests and simulations made possible by the synthesizer contributed to deepen our knowledge of one of the most important characteristics of European Portuguese, the nasal vowels. First attempts at incorpora...

A lexical prediction system is being developed at the Department of Speech Communication and Music Acoustics to be used with our speech synthesizer (Carlson, Granstrom and Hunnicutt, 1982). It is being developed in response to the observation that some non-speaking users of the synthesizer find communication with such an aid laboriously slow. Cme user commented that the other children were gues...

An audiovisual speech synthesizer from unlimited French text is here presented. It uses a 3-D parametric model of the face. The facial model is controlled by eight parameters. Target values have been assigned to the parameters, for each French viseme, based upon measurements made on a human speaker. Parameter trajectories are modeled by means of dominance functions associated with each paramete...

The design and hardware implementation of a multi-carrier Gaussian minimum shift keying (GMSK) modulator, based on a direct digital synthesizer, suitable for global system for mobile (GSM) base station applications is described. The synthesizer does not only generate the baseband GMSK signal, but also delivers it at a low IF. Special care has been taken in order to minimize the required memory ...

In this paper we present an embedded unified speech recognizer and synthesizer using identical, speaker independent HiddenMarkov-Models. The system was prototypically realized on a signal processor extended by a field programmable gate array. In a first section wewill give a brief overview of the system. The main part of the paper deals with a specially designed unit based HMM synthesis algorit...

This paper describes the latest progress in the development of a text-to-speech system for Portuguese. The system comprises 4 major modules: text normalization, linguistic and phonetic processing, generation of the synthesizer parameters and synthesis. The present rule-based version, based on the Klatt80 formant synthesizer, has achieved promising results, namely in what concerns the performanc...

A semantic-representation-to-speech system communicates orally the information given in a semantic representation. Such a system must Integrate a text generation module, a phonetic conversion module, a prosodic module and a speech synthesizer We wil l see how the syntactic information elaborated by the text generatlon module is used for both phonetic conversion and prosody, so as to produce the...

We present Combinatory Logic Synthesizer (CL)S, a typebased tool to automatically compose larger systems from repositories of components. We overview its underlying theory, combinatory logic with intersection types, and exemplify its application to synthesis. We describe features and architecture of the tool and our plans for its ongoing and future development. Finally, we present some use case...

We present a new speech synthesizer class, named KlattGrid, for the Praat program [3]. This synthesizer is based on the original description of Klatt [1, 2]. New aspects of a KlattGrid in comparison with other Klatt-type synthesizers are that a KlattGrid • is not frame-based but time-based. You specify parameters as a function of time with any precision you like. • has no limitations on the num...

Algorithms and methods were developed to synthesize complex chemical waveforms in open volumes by using a scanning-probe microfluidic platform. Time-dependent variations and oscillations of one or several chemical species around the scanning probe, such as formation of sine waves, damped oscillations, and generation of more complex patterns, are demonstrated. Furthermore, we show that intricate...