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Dissertations / Theses on the topic 'Fundamental frequency'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Xiao, Chucheng. "An Investigation of Fundamental Frequency Limitations for HF/VHF Power Conversion." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28393.

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The volume reduction in power converters over the past several decades can chiefly be attributed to increases in switching frequency. It is to be expected that the trends towards miniaturization will maintain steady pressure to keep this pace of increasing switching frequencies of power converters. However certain fundamental limits in high frequency power conversion are being reached as frequencies are being pushed deeper into the megahertz range, inhibiting substantial further increases. The work reported in this dissertation is intended to systematically investigate the fundamental freq

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2

Marklund, Ellen. "Fundamental frequency as basis for speech segmentation modeling." Thesis, Stockholms universitet, Avdelningen för fonetik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-64755.

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The present study investigates the relevance of fundamental frequency in speech segmentation models intended to simulate infants. Speech from three different conditions (infant-directed speech to 3- and 12-month-olds, and adult-directed speech) was segmented based on fundamental frequency information, using a variant of the dpn-gram segmenting technique (highlighting similar segments as lexical candidates). The spectral distance between segments that were found based on fundamental frequency similarity was calculated, and compared to the spectral distance between segments that were found using

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3

Silverman, K. E. A. "The structure and processing of fundamental frequency contours." Thesis, University of Cambridge, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234060.

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4

Suckling, Anna Louise. "Auditory Attention to Fundamental Frequency of Pure Tones." Thesis, University of Canterbury. Communication Disorders, 2014. http://hdl.handle.net/10092/9398.

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Two experiments were conducted. The first was a control condition and used the probe signal method similar to Greenberg and Larkin (1968) to see if a filter-like attentional mechanism was acting when listeners were presented with pure tone stimuli in the presence of background noise. The second experiment also used the probe signal method of Greenberg and Larkin (1968) to investigate the extent to which listeners direct their attention to a particular fundamental frequency (f0) when detecting complex tones masked by noise. Twenty adult listeners ranging from 23 years to 54 years with a median

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5

Beavers, Timothy Allan. "Fundamental Natural Frequency of Steel Joist Supported Floors." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/35880.

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Three aspects in determining the first natural frequency of steel joist supported floors were studied. The aspects are: 1) determining which finite element model best predict the behavior of joist-slab tee-beams, 2) investigating the ability of proposed equations to calculate the effective moment of inertia of joist-slab tee-beams, and 3) developing a finite element model to predict the first natural frequency of steel joist supported floors. Several finite element models were tested to determine which one best predicted the experimental results of six joist-slab setups. The model whi

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6

Strelcov, Genadij. "Garsų tyrimas kompiuteriu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120808_130631-37682.

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Garsų sintezavimas – tai procesas, kurio metu yra „gaminamas “ garsas, kuris šiandien turi būti kuo natūralesnis. Šiame baigiamajame darbe yra apžvelgiama garso samprata ir jo charakteristika: garso galia, dažnio sąvoka, fundamentalus dažnis ir harmonika, garsų tipai. Panaudojant adityvųjį garsų sintezės metodą aprašomi pianino natų sintezavimo tyrimai. Buvo sukurtas sintezavimo algoritmas, juo remiantis atlikti sintezavimo eksperimentai. Sintezavimo algoritmas buvo tobulinamas tiek, kad sintezuotos pianino natų gamos skambėjimas, beveik nesiskiria nuo tikrosios.<br>Sounds synthesis - a proces

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7

Dusterhoff, K. E. "Synthesizing fundamental frequency using models automatically trained from data." Thesis, University of Edinburgh, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.649825.

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The primary goal of this research is to produce stochastic models which can be used to generate fundamental frequency contours for synthetic utterances. The models produced are binary decision trees which are used to predict a parameterized description of fundamental frequency for an utterance. These models are trained using the sort of information which is typically available to a speech synthesizer during intonation generation. For example, the speech database is annotated with information about the location of word, phrase, segment, and syllable boundaries. The decision trees ask questions

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8

Pawi, Alipah. "Modelling and extraction of fundamental frequency in speech signals." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/8115.

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One of the most important parameters of speech is the fundamental frequency of vibration of voiced sounds. The audio sensation of the fundamental frequency is known as the pitch. Depending on the tonal/non-tonal category of language, the fundamental frequency conveys intonation, pragmatics and meaning. In addition the fundamental frequency and intonation carry speaker gender, age, identity, speaking style and emotional state. Accurate estimation of the fundamental frequency is critically important for functioning of speech processing applications such as speech coding, speech recognition, spee

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9

Skjei, Thomas. "Real-Time Fundamental Frequency Estimation Algorithm for Disconnected Speech." VCU Scholars Compass, 2011. http://scholarscompass.vcu.edu/etd/191.

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A new algorithm is presented for real-time fundamental frequency estimation of speech signals. This method extends and alters the YIN algorithm, which uses the autocorrelation-based difference function, by adding features to reduce latency, correct predictable errors, and make it structurally appropriate for real-time processing scenarios. The algorithm is shown to reduce the error rate of its predecessor while demonstrating latencies sufficient for real-time processing. The results indicate that the algorithm can be realized as a real-time estimator of spoken pitch and pitch variation, whi

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10

Ozturk, Ozlem. "Modeling Phoneme Durations And Fundamental Frequency Contours In Turkish Speech." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606733/index.pdf.

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The term prosody refers to characteristics of speech such as intonation, timing, loudness, and other acoustical properties imposed by physical, intentional and emotional state of the speaker. Phone durations and fundamental frequency contours are considered as two of the most prominent aspects of prosody. Modeling phone durations and fundamental frequency contours in Turkish speech are studied in this thesis. Various methods exist for building prosody models. State-of-the-art is dominated by corpus-based methods. This study introduces corpus-based approaches using classification and regression

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11

Peddie, Rachel. "Probe-Signal Investigation of an Attentional Filter for Fundamental Frequency." Thesis, University of Canterbury. Department of Communication Disorders, 2014. http://hdl.handle.net/10092/9203.

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When listeners are detecting tones of a given frequency in noise, they operate with a narrowband attentional filter which is tuned to the frequency of the attended tone. This means that tones with frequencies which match that which is being attended to, will be detected, whereas tones with frequencies outside the filter will be detected at chance levels. In the current study, attentional filters were measured on two auditory dimensions. The first experiment employed a modified version of the methods of previous studies to measure attentional filters in the frequency dimension (Greenberg & Lark

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12

Cohen, Aaron Seth 1974. "Automatic generation of fundamental frequency for text-to-speech synthesis." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43501.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.<br>Includes bibliographical references (p. 82-86).<br>by Aaron Seth Cohen.<br>M.Eng.

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13

Hilbish, Nathan. "Multiple Fundamental Frequency Pitch Detection for Real Time MIDI Applications." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2853.

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This study aimed to develop a real time multiple fundamental frequency detection algorithm for real time pitch to MIDI conversion applications. The algorithm described here uses neural network classifiers to make classifications in order to define a chord pattern (combination of multiple fundamental frequencies). The first classification uses a binary decision tree that determines the root note (first note) in a combination of notes; this is achieved through a neural network binary classifier. For each leaf of the binary tree, each classifier determines the frequency group of the root note (lo

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14

Costilow, Cassie E. "Human Frequency Following Responses to Voice Pitch: Relative Contributions of the Fundamental Frequency and Its Harmonics." Ohio University Honors Tutorial College / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1275684866.

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15

Mishra, Taniya. "Decomposition of fundamental frequency contours in the general superpositional intonation model /." Full text open access at:, 2008. http://content.ohsu.edu/u?/etd,654.

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16

Heerah, Arden. "Field investigation of fundamental frequency of bridges using ambient vibration measurements." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86936.

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The transient nature of forces induced in structures during earthquakes requires the use of dynamic analyses to fully characterise their behaviour. A modal analysis describes the dynamic response of the structural system through modal descriptors: natural frequencies, mode shapes and damping ratios. Efficiently estimating these modal parameters for bridges allows for better structural integrity assessments and structural health monitoring of these structures. Using ambient vibration measurements to estimate modal parameters is time-saving and efficient. This research reviews the literature on

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17

Garner, Paul Edwin. "The real-time display of larynx closed quotient and fundamental frequency." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325559.

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18

Yang, Taeyoung. "Fundamental Limits on Antenna Size for Frequency and Time Domain Applications." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/39334.

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As ubiquitous wireless communication becomes part of life, the demand on antenna miniaturization and interference reduction becomes more extreme. However, antenna size and performance are limited by radiation physics, not technology. In order to understand antenna radiation and energy storage mechanisms, classical and alternative viewpoints of radiation are discussed. Unlike the common sense of classical antenna radiation, it is shown that the entire antenna fields contribute to both radiation and energy storage with varying total energy velocity during the radiation process. These observatio

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19

Jenkins, Ruth Ann. "The Affects of Vocal Fatigue on Fundamental Frequency and Frequency Range in Actresses as Opposed to Non-Actresses." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5062.

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Differences may exist between the voice qualities of those who professionally use and train their voices and those who do not. The examination of fundamental frequency and frequency range m actresses and non-actresses is integral to determining voice quality differences in these populations. These differences, whether the result of frequent use or training of the voice, may exist relative to fatiguing conditions such as may be experienced by actresses in the course of their work. Fatigue has been shown to produce greater effects in normals than in performers, particularly in singers (Gelfer, A

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20

Horvath, Gary Paul. "Perception of the missing fundamental in patients with low frequency hearing loss." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27959.

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The perception of the pitch of a harmonic complex tone missing its fundamental frequency was investigated in patients with unilateral sensorineural low-frequency hearing loss. Using a two-alternative forced choice adaptive method and an adjustment technique, patients matched the pitch of a complex tone consisting of the 3rd-7th or 3rd-10th harmonics, with a pure tone. Component frequencies were chosen such that they would fall within the intact portion of the patient's damaged ear, but whose fundamental frequency would fall within the damaged frequency area. Pitch matches were made monaurally

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21

Neuhaus, TJ. "Gender Perception Dependent on Fundamental Frequency, Source Spectral Tilt, and Formant Frequencies." Bowling Green State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1586535654035042.

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22

Doyle, Keith Brian. "An optimization method for the design of structures for maximum fundamental frequency." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186321.

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An optimization method to maximize the fundamental frequency of a structure is developed. The procedure uses the stresses due to the mechanical loading and the free-vibration mode shapes to determine design coefficients for the elements. Each element of the structure is assigned a design coefficient rated on a scale of zero to ten. The design coefficients are used to modify an initial design following an iterative procedure. This method of optimal structural design, referred to as the Maximum Stiffness Design (MSD), may be classified as an intuitive optimality criteria method. The MSD method i

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23

Wong, Ka-man Virginia. "Fundamental frequency as an acoustic correlate of initial stop consonant aspiration in Cantonese." Click to view the E-thesis via HKUTO, 2001. http://sunzi.lib.hku.hk/hkuto/record/B36208073.

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Thesis (B.Sc)--University of Hong Kong, 2001.<br>"A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, May 4, 2001." Also available in print.

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24

Osqui, Mitra M. 1980. "Frequency selective analog to digital converter design : optimality, fundamental limitations, and performance bounds." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79152.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 131-137).<br>In this thesis, the problem of analysis and design of Analog to Digital Converters (ADCs) is studied within an optimal feedback control framework. A general ADC is modeled as a causal, discrete-time dynamical system wit

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25

Deroche, Mickael. "Role of differences in fundamental frequency between competing voices in a reverberant room." Thesis, Cardiff University, 2009. http://orca.cf.ac.uk/54897/.

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In noisy conversations, listeners can segregate competing voices on the basis of their fundamental frequency (FO). The aim of this thesis was to investigate which mechanisms underlie this FO-segregation ability and whether this ability is affected by reverberation. This work provided evidence for a mechanism, which cancels interfering voices on the basis of their harmonic structure a process termed harmonic cancellation. We developed a paradigm in which listeners had to detect a band of noise masked by a harmonic or inharmonic complex masker (Chapter II). Harmonic cancellation was found to be

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26

Fonseca, De Sam Bento Ribeiro Manuel. "Suprasegmental representations for the modeling of fundamental frequency in statistical parametric speech synthesis." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31338.

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Statistical parametric speech synthesis (SPSS) has seen improvements over recent years, especially in terms of intelligibility. Synthetic speech is often clear and understandable, but it can also be bland and monotonous. Proper generation of natural speech prosody is still a largely unsolved problem. This is relevant especially in the context of expressive audiobook speech synthesis, where speech is expected to be fluid and captivating. In general, prosody can be seen as a layer that is superimposed on the segmental (phone) sequence. Listeners can perceive the same melody or rhythm in differen

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27

Mendez, Nydia Abigail. "DO BILINGUAL SPEAKERS SHIFT FUNDAMENTAL FREQUENCY BASED ON LANGUAGE ACQUISITION OR LANGUAGE DOMINANCE?" Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1494258209560273.

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28

Cheung, Ming-wai Elizabeth. "The discrimination of the fundamental frequency of complex tones by normally hearing children." Click to view the E-thesis via HKU Scholors Hub, 2005. http://lookup.lib.hku.hk/lookup/bib/B38279125.

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Thesis (B.Sc)--University of Hong Kong, 2005.<br>"A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2005." Also available in print.

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29

Gattuccio, Caitlin Irene. "The effects of linguistic factors on analysis of relative fundamental frequency in typical speakers." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12109.

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Thesis (M.S.)--Boston University<br>Research has shown that the relative fundamental frequency (RFF) surrounding voiceless obstruents may be used as an acoustic correlate for laryngeal tension. This suggests that RFF could potentially be used as a measurement of vocal hyperfunction, a voice pathology characterized by overexertion and increased tension ofthe laryngeal muscles. Despite this potential relationship between laryngeal tension and RFF, there has been little research into what factors contribute to creating stimuli that effectively produce reliable and valid RFF data for subsequent an

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30

Sprouse, Dana Christine. "The Effect of Task Type on Fundamental Frequency in Children Ages 4.0-5.11 Years." Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1271900219.

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31

Lovett, Victoria Anne. "Voice Features of Sjogren's Syndrome: Examination of Relative Fundamental Frequency (RFF) During Connected Speech." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5749.

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The purpose of this study was to examine the effectiveness of relative fundamental frequency (RFF) in quantifying voice disorder severity and possible change with treatment in individuals with Primary Sjögren's Syndrome (SS). Participants completed twice-daily audio recordings during an ABAB within-subjects experimental study investigating the effects of nebulized saline on voice production in this population. Voice samples of the Rainbow Passage from seven of the eight individuals with Primary SS involved in a larger investigation met inclusion criteria for analysis, for a total of 555 tokens

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32

Hunyady, Heather. "Vocal Sounds of the Chinchilla." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1206318183.

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33

Askin, Victoria. "Effects of Masking, and Sex on Lombard Vowel Production." Thesis, University of Canterbury. Communication Disorders, 2014. http://hdl.handle.net/10092/9219.

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The change a speaker makes in response to background noise is known as the Lombard Effect (LE). This study investigated the acoustic changes that are undergone in the presence of broadband noise and two-talker babble. Of particular interest were vocal fundamental frequency (F0) and formant frequency vowel space measures across sex. Forty participants (20 male, 20 female) were recruited and asked to read phrases in quiet and in the presence of two-talker babble and broadband noise. These masker conditions were presented at 50 and 70 dB HL. The phrases were recorded and acoustically analysed. Th

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34

Ng, Ho-yee Janet. "Effects of Panax ginseng on selected aerodynamic measures and fundamental frequency range of healthy females." Click to view the E-thesis via HKUTO, 2002. http://sunzi.lib.hku.hk/hkuto/record/B36208413.

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Thesis (B.Sc)--University of Hong Kong, 2002.<br>"A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, May 10, 2002." Also available in print.

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Scharfeld, Tom Ahlkvist 1976. "An analysis of the fundamental constraints on low cost passive radio-frequency identification system design." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/45500.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2001.<br>Includes bibliographical references (leaves 110-115).<br>Passive radio frequency identification (RFID) systems provide an automatic means to inexpensively, accurately, and flexibly capture information. In combination with the Internet, which allows immediate accessibility and delivery of information, passive RFID systems will allow for increased productivities and efficiencies in every segment of the global supply chain. However, the necessary widespread adoption can only be achieved through improve

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Phan, Anh Tuan. "Power Systems Model Developments for Power Qality Monitoring : Application to Fundamental Frequency and Unbalance Estimation." Thesis, Mulhouse, 2016. http://www.theses.fr/2016MULH8692/document.

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Les énergies renouvelables, l’énergie sous la forme électrique et son transport à l’aide de réseaux électriques intelligents représentent aujourd’hui des enjeux majeurs car ils ont de grands impacts environnementaux et sociétaux. Ainsi, la production, le transport et la gestion de l’énergie électrique, continuent toujours à susciter un intérêt croissant. Pour atteindre ces objectifs, plusieurs verrous technologiques doivent être levés. Au-delà des questions liées aux architectures des réseaux électriques, aux modèles, aux outils de dimensionnement, à la formalisation de caractéristiques et d’i

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Milaković, Dinko [Verfasser], and Roberto Philip [Akademischer Betreuer] Saglia. "Fundamental physics and cosmology using astronomical laser frequency combs / Dinko Milaković ; Betreuer: Roberto Philip Saglia." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2020. http://d-nb.info/1222909316/34.

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38

Lewis, A. P. "The determination of the fundamental resonant frequency of a substrate-mounted open cylindrical dielectric resonator." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370989.

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Redd, Emily E. "The Effect of an Artificially Flattened Fundamental Frequency Contour on Intelligibility in Speakers with Dysarthria." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3229.

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Prosody plays an important role in speech communication. Many individuals with motor speech disorders have decreased prosodic control and thus lower overall intelligibility. Few studies have examined the effect of a flattened prosodic contour on the intelligibility of dysarthric speech, and little is known about the role that listener gender plays in understanding disordered speech. The purpose of this study was to quantify the impact of artificial prosodic manipulation on the intelligibility of dysarthric speech as a function of the extent of fundamental frequency (F0) contour flattening. A f

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Perry, Jason Daniel. "A Study of Computer Modeling Techniques to Predict the Response of Floor Systems Due to Walking." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/36118.

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The possibility of using a commercially available structural analysis program to predict the response of a floor system due to walking excitation as given in AISC Design Guide 11, Floor Vibrations Due to Human Activity (Murray, et al., 1997) was explored. This research included ideal floors that did not have measured values as well as several case study floors that do have measured values for the fundamental frequency. <p> First, multiple model set-ups and loading protocols are applied to the ideal floors and the results compared to results from the Design Guide procedure. A recommendation

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Schnabel, Stephan. "High Frequency Elastic Wave Emission Caused by a Single Elastohydrodynamically Lubricated Contact: Fundamental sources and Principles." Doctoral thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-343.

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Elastohydrodynamically lubricated (EHL) contacts are fundamental for severalrotating machine elements. For example gears, rolling element bearingsand lubricated chain drives work due to the principle of EHL. All of these machineelements require maintenance and, as condition based maintenance hasincreased in industry, the need for monitoring techniques has also increased. Inorder to avoid incorrect condition indications, since the 60’s researchers haveimproved signal processing of existing monitoring tools and developed newtechniques as a complement to these existing tools. In the past two deca

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Mir, Hosseini Farhad. "On Inverse Problems for a Beam with Attachments." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30293.

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The problem of determining the eigenvalues of a vibrational system having multiple lumped attachments has been investigated extensively. However, most of the research conducted in this field focuses on determining the natural frequencies of the combined system assuming that the characteristics of the combined vibrational system are known (forward problem). A problem of great interest from the point of view of engineering design is the ability to impose certain frequencies on the vibrational system or to avoid certain frequencies by modifying the characteristics of the vibrational system (inver

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Kura, Vijay. "Novel Pitch Detection Algorithm With Application to Speech Coding." ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/52.

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This thesis introduces a novel method for accurate pitch detection and speech segmentation, named Multi-feature, Autocorrelation (ACR) and Wavelet Technique (MAWT). MAWT uses feature extraction, and ACR applied on Linear Predictive Coding (LPC) residuals, with a wavelet-based refinement step. MAWT opens the way for a unique approach to modeling: although speech is divided into segments, the success of voicing decisions is not crucial. Experiments demonstrate the superiority of MAWT in pitch period detection accuracy over existing methods, and illustrate its advantages for speech segmenta

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Austin, Dexter Cyril. "Quantification of Motion and Cry Characteristics of NAS Newborns." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78878.

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Neonatal abstinence syndrome (NAS) is a condition caused by in-utero exposure to opioids, and its occurrence is increasing nationwide. NAS patients are newborns who can experience withdrawal symptoms including tremors, poor feeding, and respiratory distress. Presently, the Finnegan Scoring System, a subjective rating scale, is commonly used to judge the patient's condition and determine appropriate treatment methods. This project sought to develop a sensor system that is capable of objectively assessing symptoms of withdrawal, including tremors and high pitched cry. The system developed is com

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Chan, Ka-lam Jess. "The role of onset fundamental frequency on the perception of the aspiration contrast in Cantonese initial stops." Click to view the E-thesis via HKUTO, 2002. http://sunzi.lib.hku.hk/hkuto/record/B36208152.

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Thesis (B.Sc)--University of Hong Kong, 2002.<br>"A dissertation submitted in partial fulfilment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, May 10, 2002." Also available in print.

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Wile, Daryl J. "On the electrophysiological correlates of missing fundamental pitch perception and nonlinear distortion in the frequency-following response." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99212.

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The frequency-following response (FFR) is a scalp-recorded evoked potential which faithfully mimics an auditory stimulus waveform. Some research has attempted to relate the FFR to pitch perception based on FFR spectral peaks which correspond to the perceived pitch of the evoking stimulus, but these explanations are not definitive because the pitch of the evoking stimulus is often equal to the waveform envelope frequency or nonlinear distortion products also represented in the FFR. The experiments herein attempt to clarify the relevance of the FFR to pitch perception and as an assay of nonlinea

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Kong, Jessica Lynn. "The Effect Of Mean Fundamental Frequency Normalization Of Masker Speech For A Speech-In-Speech Recognition Task." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1588949121900459.

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Hosemann, Aimee J. "Effects of habitat density and other variables on the fundamental frequency of the nonhuman primate long call /." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1674100611&sid=5&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Thesis (M.A.)--Southern Illinois University Carbondale, 2008.<br>"Department of Anthropology." Keywords: Habitat, Long call, Primate, Vocalization. Includes bibliographical references (p. 151-164). Also available online.

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Hosemann, Aimee Jean. "EFFECTS OF HABITAT DENSITY AND OTHER VARIABLES ON THE FUNDAMENTAL FREQUENCY OF THE NONHUMAN PRIMATE LONG CALL." OpenSIUC, 2008. https://opensiuc.lib.siu.edu/theses/414.

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Long calls are highly stereotyped calls used by primates to communicate across distances; the function of these calls has been debated. Goustard (1983:405) defines them as " ... an extended utterance which has a high degree of structural organization." Habitat structure has been considered a shaping force of the acoustic structure of nonhuman primate long calls as part of the local adaptation hypothesis (Brown et al. 1995). This study examines the effect of phylogeny, habitat density, diet, and social and mating systems as seen through the structure of the fundamental frequency (the lowest fre

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Fisher, Judith L. "Fundamental changes to ecosystem properties and processes linked to plant invasion and fire frequency in a biodiverse woodland." University of Western Australia. School of Plant Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0109.

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[Truncated abstract] Mediterranean southwest Australia, a global biodiversity hotspot, has nutrient deficient soils, exacting climatic conditions and is species rich with 7380 native vascular plant species, of which 49% are endemic. The region is expected to experience one of the world's highest degrees of biodiversity loss and change in the coming decades, with introduced species presenting a major threat. Limited knowledge is available on the mechanisms of ecosystem change associated with invasion and fire in this biodiversity hotspot region. Banksia woodland, an iconic complex species-rich

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