Recent studies have shown that time-varying changes in formant pattern contribute to the phonetic specification of vowels. This variation could be especially important in children's vowels, because children have higher fundamental frequencies (f0's) than adults, and formant-frequency estimation is generally less reliable when f0 is high. To investigate the contribution of time-varying changes i...

Speech signals from stop consonants with trailing vowels were analysed for cues consistent with their place of articulation. They were decomposed into periodic and aperiodic components by the pitch-scaled harmonic filter to improve the quality of the formant tracks, to which exponential trajectories were fitted to get robust formant loci at voice onset. Ensemble-average power spectra of the bur...

Auditory feedback influences human speech production, as demonstrated by studies using rapid pitch and loudness changes. Feedback has also been investigated using the gradual manipulation of formants in adaptation studies with whispered speech. In the work reported here, the first formant of steady-state isolated vowels was unexpectedly altered within trials for voiced speech. This was achieved...

This study explores the higher formant structure of the male operatic voice. Through a comparative study of spoken and sung vowels from six specialist male operatically trained singers, the notion that operatic singers maintain an even vocal timbre throughout their vocal range is explored. Results validate previous investigations into the upper formant region, but also identify common patterns ...

This article presents a new algorithm used in order to convert the speech of one speaker so that it sounds like that of another speaker. This algorithm flexibly converts voice quality using two major technical developments. Firstly, the modification of formant frequencies and spectral intensity using piecewise linear voice conversion rules. This enables the control of spectrum parameters in det...

Aim: To investigate the characteristics of vocal tract resonance in Hindi Esophageal Speakers. Methodology: Five normal Hindi speakers and five Hindi esophageal speakers participated in this study. They were asked to produce the three corner vowels /a/, /i/, and /u/ in the three different conditions like nonsustained, sustained and word level. The average first three formant frequencies F1, F2,...

Experiments a r e reported in which ~xus ica l ly trained subjects ~ i a t c h the pitch of zl. stimulus tone with a var iablc response tone, both tones being synthesis of a sung vo\vel. The effects on pitch and pitch perception ac curacy of vibratos of different kinds and tile ' singing formant' a r e examined. The resul t s appear to show that the pitch corresponds to the average fundamental ...