Research Topics
| T RiedeSummaryCountry: Germany Publications
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Detail Information
Publications
Nonlinear acoustics in the pant hoots of common chimpanzees (Pan troglodytes): vocalizing at the edgeTobias Riede
National Center for Voice and Speech, Denver Center for the Performing Arts, CO 80204, USA
J Acoust Soc Am 121:1758-67. 2007..The results are discussed in light of the initial hypotheses...
Songbirds tune their vocal tract to the fundamental frequency of their songTobias Riede
School of Medicine, Jordan Hall, 1001 East Third Street, Indiana University, Bloomington, IN 47405, USA
Proc Natl Acad Sci U S A 103:5543-8. 2006..A computational acoustic model indicates that this song-related motor pattern tunes the major resonance of the oropharyngeal-esophageal cavity to actively track the song's fundamental frequency...
Characterizing noise in nonhuman vocalizations: Acoustic analysis and human perception of barks by coyotes and dogsTobias Riede
Institute for Theoretical Biology, Humboldt University of Berlin, D 10115 Berlin, Germany
J Acoust Soc Am 118:514-22. 2005..The advantages and disadvantages of the various measures are discussed...
Vocal production mechanisms in a non-human primate: morphological data and a modelTobias Riede
Institut für Theoretische Biologie, Humboldt Universitat zu Berlin, Invalidenstrasse 43, 10115 Berlin, Germany
J Hum Evol 48:85-96. 2005..We discuss the implications of these findings for evolutionary theories of human and non-human vocal production...
Nonlinear acoustics in pant hoots of common chimpanzees (Pan troglodytes): frequency jumps, subharmonics, biphonation, and deterministic chaosTobias Riede
Department of Psychology, Cornell University, Ithaca, New York, USA
Am J Primatol 64:277-91. 2004..These outcomes show that nonlinear phenomena are routinely present in chimpanzee pant hoots, and help lay the foundation for investigating the function of such events...
Inflation of the esophagus and vocal tract filtering in ring dovesTobias Riede
Medical Sciences, Indiana University, Bloomington, IN 47405, USA
J Exp Biol 207:4025-36. 2004..The inflated esophagus may function as a Helmholtz resonator in which the elastic walls form the vibrating mass. Such a resonator could support the f(0) over a range of inflated volumes...
The relationship between acoustic structure and semantic information in Diana monkey alarm vocalizationTobias Riede
Institut für Theoretische Biologie, Humboldt Universitat zu Berlin, Invalidenstrasse 43, 10115 Berlin, Germany
J Acoust Soc Am 114:1132-42. 2003..It is suggested that the formant modulation is the result of active vocal filtering used by the monkeys to encode semantic information, an ability previously thought to be restricted to human speech...
Pulse register phonation in Diana monkey alarm callsTobias Riede
Department of Psychology, 245 Uris Hall, Cornell University, Ithaca, New York 14853, USA
J Acoust Soc Am 113:2919-26. 2003....
The harmonic-to-noise ratio applied to dog barksT Riede
Institut fur Biologie, Humboldt Universitat zu Berlin, Germany
J Acoust Soc Am 110:2191-7. 2001..In addition, a multiparametric approach confirms the classification based on the HNR. Hence, it may be concluded that the HNR might be useful as a novel parameter in bioacoustics for quantifying the noise within a signal...
Nonlinear phenomena in the natural howling of a dog-wolf mixT Riede
Institut fur Biologie, Humboldt Universitat zu Berlin, Germany
J Acoust Soc Am 108:1435-42. 2000..Spectral analysis of the female's voice showed clear similarities with an intensively studied voice of a human who produces biphonation intentionally. Finally, the possible communicative relevance of nonlinear phenomena is discussed...
Vocal tract length and acoustics of vocalization in the domestic dog (Canis familiaris)T Riede
Institut fur Biologie, c o Professor G Tembrock, Humboldt Universitat zu Berlin, Invalidenstrasse 43, Germany
J Exp Biol 202:2859-67. 1999..Because of the low correlation between vocal tract length and the first formant, we predict a non-uniform vocal tract shape...
Two-voice complexity from a single side of the syrinx in northern mockingbird Mimus polyglottos vocalizationsSue Anne Zollinger
Department of Biology, Jordan Hall, Indiana University, Bloomington, IN 47405, USA
J Exp Biol 211:1978-91. 2008..Our data support previous hypotheses for mechanical and acoustic coupling between the two sides of the syrinx. These results help lay a foundation upon which to understand the communicative functions of nonlinear phenomena...
Vocal fold elasticity of the Rocky Mountain elk (Cervus elaphus nelsoni) - producing high fundamental frequency vocalization with a very long vocal foldTobias Riede
National Center for Voice and Speech, Denver, CO 80204, USA
J Exp Biol 211:2144-54. 2008..The relationships between an individual's average fundamental frequency, vocal fold length and body size are discussed...
Nonlinear source-filter coupling in phonation: vocal exercisesIngo Titze
National Center for Voice and Speech, The Denver Center for the Performing Arts, Denver, Colorado, USA
J Acoust Soc Am 123:1902-15. 2008....
Vocal tract motor patterns and resonance during constant frequency song: the white-throated sparrowTobias Riede
National Center for Voice and Speech, 1101 13th Street, Denver, CO 80204, USA
J Comp Physiol A Neuroethol Sens Neural Behav Physiol 195:183-92. 2009..The presence of similar prominent song-related vocal tract motor patterns in two Oscine families suggests that the active control of the vocal tract resonance by varying the volume of the OEC may be widespread in songbirds...
Model for vocalization by a bird with distensible vocal cavity and open beakNeville H Fletcher
Research School of Physical Sciences and Engineering, Australian National University, Canberra 0200, Australia
J Acoust Soc Am 119:1005-11. 2006..To produce nearly pure-tone song, the bird adjusts the frequency of this peak to coincide with the fundamental of the syringeal oscillation. The present paper provides the acoustical analysis underlying this behavior...
Nonlinear analysis of irregular animal vocalizationsIsao Tokuda
Department of Computer Science and Systems Engineering, Muroran Institute of Technology, Hokkaido, Japan
J Acoust Soc Am 111:2908-19. 2002..It is concluded that nonlinear analysis is primarily useful in animal vocalizations with strong harmonic components (including subharmonics and biphonation) or low-dimensional chaos...
Mammalian laryngseal air sacs add variability to the vocal tract impedance: physical and computational modelingTobias Riede
Japan Advanced Institute of Science and Technology, 1 1 Asahidai, Nomi shi, Ishikawa 923 1292, Japan
J Acoust Soc Am 124:634-47. 2008..The experiments demonstrated that air-sac-like structures can destabilize the sound source. The results were validated by a transmission line computational model...
Vocal tract filtering and the "coo" of dovesNeville H Fletcher
Research School of Physical Sciences and Engineering, Australian National University, Canberra 0200, Australia
J Acoust Soc Am 116:3750-6. 2004..These conclusions are supported by measurements and observations that have been reported in a companion paper...
