OBJECTIVES Patients with bilateral vocal fold paralysis (BVFP) theoretically have difficulty producing voiceless consonants. However, perceptual studies have revealed clear production of voiceless consonants with good articulation scores in nontracheostomized patients. The purpose of this study was to clarify the production of voiceless stops during articulation in patients with BVFP compared t...

A study of the durational characteristics of Hindi stop consonants in spoken sentences was carried out. An annotated and time-aligned Hindi speech database was used in the experiment. The influences of aspiration, voicing and gemination on the durations of closure and post-release segments of plosives as well as the duration of the preceding vowel were studied. It was observed that the post-rel...

Uspanteko is an endangered Mayan language spoken by up to 6000 people in the Guatemalan highlands. We provide overview of phonetics and phonology Uspanteko, focussing on phenomena which are common languages and/or typologically interesting. These include glottalised consonants (ejectives, implosives, glottal stop), uvular consonants, vowel length contrasts, syllable structure, stress, lexical t...

A perception experiment on stop consonant voicing in (C)V1CV2 was conducted to test the effects of the preceding vowel. Five types of /ki/ as CV1 differing in closure voicing, vowel duration and vowel devoicing were spliced with a da-ta VOT continuum as CV2. Subjects’ judgment between the spliced kita and kida along a VOT range was compared with that of ta and da in isolation. Strong effects of...

Speech segregation from acoustic interference is a very challenging task. Previous systems have dealt with voiced speech with success, but they cannot handle unvoiced speech. We study the segregation of stop consonants, which contain significant unvoiced signals. We propose a novel method that employs onset as a major cue to segregate stop consonants. Our system first detects stops through onse...

In this study, we aimed to determine the average VOT (voice onset time) values of the Turkish stop consonants by using 30 volunteers (15 female and 15 male). For this aim, we measured the VOT values of the six Turkish stops (i.e., /p/, /b/, /t/, /d/, /k/ and /g/), which were uttered by 30 subjects in three times, on wideband spectrograms. At the result of this study, the average VOT values of /...