Sökning: "formant frequencies"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden formant frequencies.

1. 1. Why so different? - Aspects of voice characteristics in operatic and musical theatre singing : Aspects of voice characteristics in operatic and musical theatre singing

   Författare :Eva Björkner; Anders Askenfelt; Ronald C. Scherer; KTH; []
   Nyckelord :HUMANIORA; HUMANITIES; operatic singing; musical theatre singing; voice source; subglottal pressure; flow glottogram; inverse filtering; formant frequencies; amplitude quotient AQ ; Music; Musikvetenskap;

   Sammanfattning : This thesis addresses aspects of voice characteristics in operatic and musical theatre singing. The common aim of the studies was to identify respiratory, phonatory and resonatory characteristics accounting for salient voice timbre differences between singing styles. LÄS MER

3. 2. Perception, Analysis and Synthesis of Speaker Age

   Författare :Susanne Schötz; Fonetik; []
   Nyckelord :HUMANIORA; HUMANITIES; phonology; perceptual cues; speaker age; automatic speaker recognition; acoustic analysis; acoustic correlates; data-driven; Phonetics; formant synthesis; Fonetik; fonologi; Technological sciences; Teknik;

   Sammanfattning : Speaker age is an important paralinguistic feature in speech which has to be considered in the study of phonetic variation. Knowledge about this feature may be used to improve speech technology applications, e.g. automatic speech recognition and speech synthesis. LÄS MER

4. 3. Effects of peripheral auditory adaptation on the discrimination of speech sounds

   Författare :Francisco Lacerda; Hartmut Traunmüller; Olle Engstrand; Björn Lindblom; Louis Pols; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Adaptation; discrimination; categorical perception; Phonetics; Fonetik; Phonetics; fonetik;

   Sammanfattning : This study investigates perceptual effects of discharge rate adaptation in the auditory-nerve fibers. Discrimination tests showed that brief synthetic stimuli with stationary formants and periodic source were better discriminated when they had an abrupt as opposed to a gradual onset (non-adapted vs adapted condition). LÄS MER

5. 4. On Vowels : Spectral Features, Related Aspects of Production and Sociophonetic Dimensions

   Författare :Hartmut Traunmüller; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Phonetics; Fonetik;

   Sammanfattning : The first and major part of this thesis deals with spectral features of vowels and with the distinction of phonetic information from personal and transmittal information also conveyed to listeners by speech sounds. The results of perceptual experiments with synthetic vowels whose fundamental and first formant were varied in frequency suggested that the smaller tonotopical distances between formants (< 6 Bark) are invariant in phonetically idenctical vowels produced by male and female speakers of several languages. LÄS MER

7. 5. Acoustic Properties as Predictors of Perceptual Responses : a Study of Swedish Voiced Stops

   Författare :Diana Krull; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Phonetics; Fonetik; Phonetics; fonetik;

   Sammanfattning : In speech recognition algorithms and certain theories of speech perception the interpretation of the signal is based on " distance scores " for comparisons of the signal with stored references; in these theories, perception is seen as a product of stimulus and experience. The aim of the present thesis is to evaluate such distance measures by investigating the perceptual confusions of the Swedish voiced stops [b,d,q,g] in systematically varied fragments of vowel-consonantvowel stimuli providing 25 vowel contexts for each consonant. LÄS MER