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Importance of pitch and spatial separation for the Cocktail party effect
2011 (English)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This study examines two important factors for the conception Auditory Streaming defined by Bregman, pitch and localization. By removing one or two of these factors as possible identifiers to separate sound sources, the importance of each of them and the combined effect of reducing both of them will be studied. Stimuli with combinations of two-syllable words were presented simultaneously in speakers to subjects and the number of correct identifications was measured. In one category of stimuli speech melody was removed and replaced with a monotonous pitch, equal for all words. One category had all words presented from one speaker only. Significant effect regarding the success of identification was found for both investigated factors as well as for interaction them in between. The study shows that removal of differences in pitch or spatial origin between voices lessens our ability to identify the word content. The results go well in line with earlier studies and common theories, the Cocktail party effect among others.

Place, publisher, year, edition, pages
2011. , 37 p.
Keyword [en]
Technology
Keyword [sv]
Teknik, cocktailparty, tonhöjd, spatial, pitch, röster, språk
Identifiers
URN: urn:nbn:se:ltu:diva-49541Local ID: 6e026626-90c2-461b-9f8f-32767505a4d4OAI: oai:DiVA.org:ltu-49541DiVA: diva2:1022888
Subject / course
Student thesis, at least 15 credits
Educational program
Audio Technology, master's level
Examiners
Note
Validerat; 20111115 (anonymous)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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fulltext(620 kB)123 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf