A method for the automatic location of phonetically important events in continuous speech signals is presented. The events chosen are plosive bursts, fricatives, nasals and vocalic onsets and offsets. These events have been chosen to match the requirements of a system that enhances these regions to make the signal more robust to channel degradation. The technique uses a syntactic pattern recogn...

In this paper new EMMA data regarding European Portuguese nasals is presented. Some details about corpus constitution, recording and annotation is given. First results from analysis are presented. Quantitative analysis of velum movement was done for nasal vowels between stops. For the other contexts representative examples are presented and qualitatively analysed. In all contexts nasal vowels a...

We depict the interpolation strategies for the concatenation of inventory demisyllables in our hybrid concatenative/LPC speech synthesizer. Inventory elements for vowels and nasals are cut in the steady state of the phoneme. Concatenating elements in the synthesis stage requires smoothing of spectral content and energy to avoid annoying discontinuities in these parameters, which is of vital imp...

• has rich morphology -> many word forms. Phonetics Amharic has a set of 38 phones, seven vowels and thirty-one consonants. Consonants Manner Voicing Place of Articulation of Art/n Lab Dent Pal Vel Glo Stops Voiceless p[p] t[t] m[t∫ ] k[k] …[?] Voiced b[b] d[d] ¥[d ] g[g] GlottalizedÍ[p‘] μ[t‘] 1⁄2[t∫ ‘]q[q] Rounded [kw], [gw], [qw] Fricatives Voiceless f[f] s[s] ][∫ ] h[h] Voiced z[z] •[ ] Glo...

This paper presents a knowledge/rule based approach to continuous speech recognition. The proposed recognition system (Samouelian, 1994) uses a data driven methodology, where the knowledge about the structure and characteristics of the speech signal is captured explicitly from the database by the use of inductive inference (C4.5) (Quinlan, 1986). This allows the integration of features from exi...

In this paper, we present a solution to one aspect of the decipherment task: the prediction of consonants and vowels for an unknown language and alphabet. Adopting a classical Bayesian perspective, we performs posterior inference over hundreds of languages, leveraging knowledge of known languages and alphabets to uncover general linguistic patterns of typologically coherent language clusters. W...

In Hungarian casual speech, [n] may not be fully pronounced before continuant consonants. In this paper the durational changes of the vowel and the nasal as well as the formants of the vowel were analyzed in VNC sequences. The spreading coarticulatory effect in these sequences is supposed to originate from the continuant C (fricatives and approximants) that modifies the [n] articulation. The re...

Speech signals can be considered as being generated by mechanical system with inherently nonlinear dynamics. The purpose of this paper is to describe its complexity using the fractal dimension of a variety of spanish voiced sounds (vowels, nasals) and unvoiced sounds (fricatives) In our research, the fractal dimension was computed over recorder signals from a speech spanish database (AHUMADA), ...

Segmenting the acoustic signal in the TIMIT database by a switching state Kalman filter model is reported in this paper. According to the assumption that the high dimensional acoustic feature vector of the LSF (Line Spectrum Frequency) of the speech signal is probably embedded in a low dimensional space, a two dimensional vector is used to represent the continuous state vector in this model. Th...

The study investigates the effect of speech rate on the temporal organization of syllable production of in Hong Kong Cantonese. The results show that all the component segments of the test syllables, including the vowel-nasal transitions and elementelement transitions in the diphthongs, contribute to the reduction of the entire syllable durations in fast speech. While the percentages of duratio...