Sökning: "auditory speech perception"

Visar resultat 1 - 5 av 28 avhandlingar innehållade orden auditory speech perception.

1. 1. Semantic Framing of Speech : Emotional and Topical Cues in Perception of Poorly Specified Speech

   Författare :Björn Lidestam; Björn Lyxell; Staffan Hygge; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Speech perception; speechreading; facial expressions; priming; phonemes; semantics; lipreading; auditory perception; cognition; paralinguistics; emotional content; Läppavläsning; Psychology; Psykologi;

   Sammanfattning : The general aim of this thesis was to test the effects of paralinguistic (emotional) and prior contextual (topical) cues on perception of poorly specified visual, auditory, and audiovisual speech. The specific purposes were to (1) examine if facially displayed emotions can facilitate speechreading performance; (2) to study the mechanism for such facilitation; (3) to map information-processing factors that are involved in processing of poorly specified speech; and (4) to present a comprehensive conceptual framework for speech perception, with specification of the signal being considered. LÄS MER

3. 2. Time is of the essence in speech perception! : Get it fast, or think about it

   Författare :Shahram Moradi; Jerker Rönnberg; Björn Lidestam; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Noise; auditory speech perception; audiovisual speech perception; hearing aids; Buller; hörsel; auditiv talperception; audiovisuell talperception; hörhjälpmedel;

   Sammanfattning : The present thesis examined the extent to which background noise influences the isolation point (IP, the shortest time from the onset of speech stimulus required for correct identification of that speech stimulus) and accuracy in identification of different types of speech stimuli (consonants, words, and final words in high-predictable [HP] and low-predictable [LP] sentences). These speech stimuli were presented in different modalities of presentation (auditory, visual, and audiovisual) to young normal-hearing listeners (Papers 1, 2, and 5). LÄS MER

4. 3. Perceptually motivated speech recognition and mispronunciation detection

   Författare :Christos Koniaris; Olov Engwall; Martin Cooke; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; feature extraction; feature selection; auditory models; MFCCs; speech recognition; distortion measures; perturbation analysis; psychoacoustics; human perception; sensitivity matrix; pronunciation error detection; phoneme; second language; perceptual assessment;

   Sammanfattning : This doctoral thesis is the result of a research effort performed in two fields of speech technology, i.e., speech recognition and mispronunciation detection. Although the two areas are clearly distinguishable, the proposed approaches share a common hypothesis based on psychoacoustic processing of speech signals. LÄS MER

5. 4. Exploration des mécanismes non conscients de la perception de la parole: approches comportementales et électroencéphalographiques

   Författare :Carine Signoret; Fabien Perrin; France Lyon Université de Lyon INSERM U1028 CNRS UMR5292 Lyon Neuroscience Research Center; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; speech; detection; semantic priming; eeg; consciousness;

   Sammanfattning : Although a lot of information is available from our environment at every moment, only a small part gives rise to a conscious percept. It is then legitimate to wonder which mechanisms are involved in the perception phenomenon. LÄS MER

7. 5. Speech masking speech in everyday communication : The role of inhibitory control and working memory capacity

   Författare :Victoria Stenbäck; Birgitta Larsby; Björn Lyxell; Mathias Hällgren; Jonas Brännström; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hearing impairment; normal hearing; age; speech-in-noise; working memory; inhibitory control; listening effort; Hörselnedsättning; normal hörsel; ålder; tal-i-brus; arbetsminne; inhibitionskontroll; lyssningansträngning;

   Sammanfattning : Age affects hearing and cognitive abilities. Older people, with and without hearing impairment (HI), exhibit difficulties in hearing speech in noise. LÄS MER