Journal ArticleDOI
Amplitude modulation of turbulence noise by voicing in fricatives
TLDR
An acoustic study of the amplitude modulation of the frication component when voicing is present, which reveals a pattern, consistent across speaking style, speaker, and place of articulation, for modulation at fo to rise at low voicing strengths and subsequently saturate.Abstract:
The two principal sources of sound in speech, voicing and frication, occur simultaneously in voiced fricatives as well as at the vowel-fricative boundary in phonologically voiceless fricatives. Instead of simply overlapping, the two sources interact. This paper is an acoustic study of one such interaction effect: the amplitude modulation of the frication component when voicing is present. Corpora of sustained and fluent-speech English fricatives were recorded and analyzed using a signal-processing technique designed to extract estimates of modulation depth. Results reveal a pattern, consistent across speaking style, speaker, and place of articulation, for modulation at f0 to rise at low voicing strengths and subsequently saturate. Voicing strength needed to produce saturation varied 60–66dB across subjects and experimental conditions. Modulation depths at saturation varied little across speakers but significantly for place of articulation (with [z] showing particularly strong modulation) clustering at app...read more
Citations
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Journal ArticleDOI
Acoustic characteristics of clearly spoken English fricatives
TL;DR: This study attempts to characterize the adaptations in the clear production of American English fricatives in a carefully controlled range of communication situations and finds that talkers differed widely in the types and magnitude of all modifications.
Journal ArticleDOI
Exploiting Development to Evaluate Auditory Encoding of Amplitude Modulation
TL;DR: A comparison of single-unit responses in juveniles and adults revealed that encoding of static tones was adult like in juveniles, but responses to sAM depth were immature, and if sAM detection is based on the most sensitive neurons, then immature behavioral performance is best explained by an immature decoding mechanism.
Patent
Strained-rough-voice conversion device, voice conversion device, voice synthesis device, voice conversion method, voice synthesis method, and program
Yumiko Kato,Takahiro Kamai +1 more
TL;DR: In this paper, a strained-rough-voice conversion unit is included in a voice conversion device that can generate a "strained rough" voice produced in a part of a speech when speaking forcefully with excitement, nervousness, anger, or emphasis and thereby richly express vocal expression such as anger, excitement, or an animated or lively way of speaking, using voice quality change.
Journal ArticleDOI
Amplitude‐modulation depth discrimination of a sinusoidal carrier.
Jungmee Lee,Sid P. Bacon +1 more
TL;DR: This model provided a reasonable prediction of the change in AM depth discrimination threshold as a function of stimulus duration and demonstrated the ability of a multiple-looks model to explain the present data.
Journal ArticleDOI
Avaliações acústica e perceptiva de fala nos processos de dessonorização de obstruintes
Ana Paula Ramos de Souza,Lisiane Collares Scott,Carolina Lisbôa Mezzomo,Roberta Freitas Dias,Vanessa Giacchini +4 more
TL;DR: In this paper, the authors compare the perception and production of voiced constraint in the speech of two subjects, one in normal acquisition and another with phonological impairment, and analyzing acoustic and perceptual research methods of the voiced constraint.
References
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Journal ArticleDOI
On Sound Generated Aerodynamically. I. General Theory
TL;DR: In this paper, a theory for estimating the sound radiated from a fluid flow, with rigid boundaries, which as a result of instability contains regular fluctuations or turbulence is initiated, based on the equations of motion of a gas.
Journal ArticleDOI
Speech recognition with primarily temporal cues.
TL;DR: Nearly perfect speech recognition was observed under conditions of greatly reduced spectral information; the presentation of a dynamic temporal pattern in only a few broad spectral regions is sufficient for the recognition of speech.
Journal ArticleDOI
Orderly Structure in Jet Turbulence
S. C. Crow,F. H. Champagne +1 more
TL;DR: In this paper, the authors show that a large-scale orderly pattern may exist in the noiseproducing region of a round subsonic jet by observing the evolution of orderly flow with advancing Reynolds number.
Journal ArticleDOI
Software for a cascade/parallel formant synthesizer
TL;DR: A software formant synthesizer is described that can generate synthetic speech using a laboratory digital computer and a control program lets the user specify variable control parameter data, such as formant frequencies as a function of time, as a sequence of 〈time, value〉 points.
Journal ArticleDOI
On Sound Generated Aerodynamically. II. Turbulence as a Source of Sound
TL;DR: The theory of sound generated aerodynamically is extended by taking into account the statistical properties of turbulent airflows, from which the sound radiated (without the help of solid boundaries) is called aerodynamic noise as mentioned in this paper.