Results 1 to 10 of about 658,473 (200)

Field Propagation Experiments of Male African Savanna Elephant Rumbles: A Focus on the Transmission of Formant Frequencies [PDF]

open access: yesAnimals, 2018
African savanna elephants live in dynamic fission–fusion societies and exhibit a sophisticated vocal communication system. Their most frequent call-type is the ‘rumble’, with a fundamental frequency (which refers to the lowest vocal ...
Anton Baotic   +3 more
doaj   +4 more sources

Low frequency groans indicate larger and more dominant fallow deer (Dama dama) males. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: Models of honest advertisement predict that sexually selected calls should signal male quality. In most vertebrates, high quality males have larger body sizes that determine higher social status and in turn higher reproductive success ...
Elisabetta Vannoni, Alan G McElligott
doaj   +3 more sources

Neural Resolution of Formant Frequencies in the Primary Auditory Cortex of Rats. [PDF]

open access: yesPLoS ONE, 2015
Pulse-resonance sounds play an important role in animal communication and auditory object recognition, yet very little is known about the cortical representation of this class of sounds.
Christian Honey, Jan Schnupp
doaj   +2 more sources

On Short-Time Estimation of Vocal Tract Length from Formant Frequencies. [PDF]

open access: yesPLoS ONE, 2015
Vocal tract length is highly variable across speakers and determines many aspects of the acoustic speech signal, making it an essential parameter to consider for explaining behavioral variability.
Adam C Lammert, Shrikanth S Narayanan
doaj   +2 more sources

A Chinese alligator in heliox: formant frequencies in a crocodilian.

open access: yesJ Exp Biol, 2015
ABSTRACT Crocodilians are among the most vocal non-avian reptiles. Adults of both sexes produce loud vocalizations known as ‘bellows’ year round, with the highest rate during the mating season. Although the specific function of these vocalizations remains unclear, they may advertise the caller's body size, because relative size ...
Reber SA   +4 more
europepmc   +3 more sources

Speech features as potential objective assessment indicators in schizophrenia patients with violence-related symptoms [PDF]

open access: yesFrontiers in Psychiatry
IntroductionSchizophrenia is a chronic mental disorder characterized by impairments that can significantly disrupt daily functioning, particularly in speech and language. Speech features serve as valuable indicators of mental disorders.
Junjie Wang   +7 more
doaj   +2 more sources

Timbre perception in violins: spectral and formant influences of string materials in a controlled study [PDF]

open access: yesScientific Reports
String instrument timbre is influenced by a complex interplay of string material, instrument body characteristics, and playing technique. However, the perceptual effects of different string materials and their relationship with acoustic parameters remain
Takumi Asakura
doaj   +2 more sources

The Influence of Persian Language on Khoramabadi Luri Vowels Quality for Forensic Analysis [PDF]

open access: yes̒Ilm-i Zabān, 2023
Using forensic analysis, this study attempted to investigate the influence of the Persian language on the quality of Khoramabadi Luri vowels. This research tried to find the answer to whether Persian can affect the acoustic features of Khoramabadi vowels
Nasim Vafaei Salar Poor   +2 more
doaj   +1 more source

Influence of Overpressure Breathing on Vowel Formant Frequencies

open access: yesArchives of Acoustics, 2021
Voice controlled management systems are based on speech recognition techniques. The use of such systems in combat aircraft is complex due to a number of critical factors which affect the accuracy of speech recognition, such as high level of ambient noise
Milan VOJNOVIĆ   +3 more
doaj   +1 more source

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