Universität zu Köln

Pyschny, Verena, Landwehr, Markus, Hahn, Moritz, Lang-Roth, Ruth, Walger, Martin and Meister, Hartmut (2014). Head Shadow, Squelch, and Summation Effects With an Energetic or Informational Masker in Bilateral and Bimodal CI Users. J. Speech Lang. Hear. Res., 57 (5). S. 1942 - 1961. ROCKVILLE: AMER SPEECH-LANGUAGE-HEARING ASSOC. ISSN 1558-9102

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Abstract

Purpose: The objective of the study was to investigate the influence of noise (energetic) and speech (energetic plus informational) maskers on the head shadow (HS), squelch (SQ), and binaural summation (SU) effect in bilateral and bimodal cochlear implant (CI) users. Method: Speech recognition was measured in the presence of either a competing talker or modulated speech-shaped noise in 10 bimodal and 10 bilateral adult CI users. HS, SQ, and SU effects were calculated. The interfering signals were manipulated with respect to F0 to consider the influence of different speaker voices. Results: The effects HS, SQ, and SU differed depending on the type of masker. A detailed analysis of errors was used to dissociate energetic and informational masking effects. The analysis showed a release from energetic than from informational masking. Conclusion: Noise interferers are not sufficient to reflect difficulties experienced with speech understanding in noise for bilateral and bimodal CI users.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Pyschny, Verena UNSPECIFIED UNSPECIFIED UNSPECIFIED Landwehr, Markus UNSPECIFIED UNSPECIFIED UNSPECIFIED Hahn, Moritz UNSPECIFIED UNSPECIFIED UNSPECIFIED Lang-Roth, Ruth UNSPECIFIED UNSPECIFIED UNSPECIFIED Walger, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED Meister, Hartmut UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-426161
DOI:	10.1044/2014_JSLHR-H-13-0144
Journal or Publication Title:	J. Speech Lang. Hear. Res.
Volume:	57
Number:	5
Page Range:	S. 1942 - 1961
Date:	2014
Publisher:	AMER SPEECH-LANGUAGE-HEARING ASSOC
Place of Publication:	ROCKVILLE
ISSN:	1558-9102
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language USE HEARING-AIDS; COCHLEAR IMPLANT; SPEECH RECOGNITION; SPATIAL SEPARATION; BINAURAL HEARING; STIMULUS UNCERTAINTY; COCKTAIL-PARTY; OPPOSITE EARS; MASKING; NOISE Multiple languages Audiology & Speech-Language Pathology; Linguistics; Rehabilitation Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/42616