This study investigated the acoustic characteristics of voicing in English fricative consonants produced by anterior aphasics and the effects of phonetic context on these characteristics. Three patients produced voiced and voiceless fricative-vowel syllables in isolation, following a voiced velar stop, and following a voiceless velar stop. Acoustic analyses were conducted of the amplitude and p...

This work reports cross-language differences in the voicing of initial voiced stops, and in the use of active maneuvers to achieve closure voicing, using multiparametric aerodynamic data. Oral pressure, oral and nasal flow, and acoustic data were obtained for utterance-initial /b d p t m/ for 10 speakers of Spanish, 6 speakers of French and 5 speakers of English. Voiced stops were classified as...

Abstract Voicing is an important phonetic characteristic of speech. Each phoneme belongs to a group either voiced or unvoiced sounds. We investigated and compared the performance five algorithms widely used estimate speech voicing. All were implemented in Matlab tested on both short consonants continuous Phonetically paired (voiced vs unvoiced) parts read from audio books experiments. The tuned...

Hybrid source models for fricative consonants are derived based on aeroacoustic principles of sound generation employing vocal tract area functions obtained from magnetic resonance imaging data of voiced and unvoiced English fricatives. Results based on data from a male and a female subject indicate that a linear source-filter model is fairly adequate for capturing essential spectral characteri...

This letter focuses on the automatic estimation of the first subglottal resonance (Sg1). A database comprising speech and subglottal data of native American English speakers and bilingual Spanish/English speakers was used for the analysis. Data from 11 speakers (five males and six females) were used to derive an empirical relation among the first formant frequency, fundamental frequency, and Sg...

UNLABELLED Vowel durations following the production of voiced and voiceless stop consonants produced during simultaneous communication (SC) were investigated by recording sign language users during SC and speech alone (SA). Under natural speaking conditions, or speaking alone (SA), vowels following voiced stop consonants are longer in duration than vowels following voiceless stops. Although the...

This paper presents findings on VOT variability in voiced and voiceless plosives produced by 159 speakers from four locations straddling the English-Scottish border. The analysis reveals key effects of both social and phonetic factors, highlighting the importance of both in accounting for variability.

The present study examines how Swiss German learners cope with the contrast between voiced and unvoiced obstruents in L2 French. The feature [±voice]) is not exploited in Swiss German dialects, where pairs of obstruents sharing the same place and manner of articulation are basically differentiated in terms of longer or shorter duration (i.e., the feature [±tense]). Therefore, we expect that Swi...