The final quality of a concatenation synthesis system is directly related to the continuity of the spectrum at the concatenation point. Due to the subjective auditory masking, if we minimize the spectral distortion in the formant frequencies, the quality will increase significantly. In this paper we present, along with results concerning pitch marking, an algorithm capable of modifying the LPC ...

We propose in this paper a decomposition theorem for the timed automata introduced by Alur and Dill 2]. To this purpose, we deene a new simple and natural concatenation operation, indexed by the set of clocks to be reset, on timed automata generalizing the classical untimed concatenation. Then we extend the famous Kleene's and B uchi's theorems on classical untimed automata by simply changing t...

We have proposed a novel probabilistic approach to concatenation modeling for corpus-based speech synthesis, where the goodness of concatenation for a unit is modeled using a conditional Gaussian probability density whose mean is defined as a linear transform of the feature vector from the previous unit. This approach has shown its effectiveness through a subjective listening test. In this pape...

In concatenative text-to-speech (TTS) synthesis systems unit selection aims to reduce the number of concatenation points in the synthesized speech and make concatenation joins as smooth as possible. This research considers synthesis of completely new utterances from non-uniform units, whereby the most appropriate units, according to acoustic and phonetic criteria, are selected from a myriad of ...

This study examines the utility of employing digit concatenation, as distinct from the traditional expression based approach, for the purpose of evolving constants in Grammatical Evolution. Digit concatenation involves creating constants (either whole or real numbers) by concatenating digits to form a single value. The two methods are compared using three different problems, which are finding a...

In this paper, an algorithm for the concatenation of speech signal segments taken from disjoint utterances is presented. The algorithm is based on the Analysis-bySynthesis/Overlap-Add (ABS/OLA) sinusoidal model [1, 2, 3], which is capable of performing high quality pitchand time-scale modi cation of both speech and music signals. With the incorporation of concatenation and smoothing techniques,...

The construction of a highly intelligible talking head involving relevant lip gestures is especially important for hearing impaired people. This requires realistic rendering of lip and jaw movements and thus relevant modeling of lip coarticulation. This paper presents the comparison between the Cohen & Massaro prediction algorithm and our concatenation plus completion strategy guided by phoneti...

DNA can be concatenated by hybridization of DNA fragments with protruding single-stranded termini. DNA cleavage occurring at a nucleotide containing a DNA base analogue is a useful method to obtain DNA with designed protruding termini. Here, we report a novel non-enzymatic DNA cleavage reaction for DNA concatenation. We found that DNA is cleaved at a nucleotide containing 5-ethynyluracil in a m...

This paper is a contribution to the algebraic study of the concatenation product. In the first part of the paper, we extend to the ordered case standard algebraic tools related to the concatenation product, like the Schützenberger product and the relational morphisms. We show in a precise way how the ordered Schützenberger product corresponds to polynomial operations on languages. In the second...