Tagungsband - DAGA 2024
Beitrag
Speech Recognition Thresholds of Single Sided Deaf and Bimodal CI Users for Different Interferer Conditions (no manuscript)
Zusammenfassung:
In Cochlear Implant provision, monosyllable word scores (MWS) in quiet are an established measure for indication and outcome evaluation, but advanced tests are needed to evaluate auditory processing in noise. This study evaluates if singles sided deaf (SSD) and bimodal listeners (BiM) with comparable binaural MWS show differences for speech in noise or in speech with different interferer directions.Speech recognition thresholds (SRT) of 10 BiM and 9 SSD listeners were measured using OLSA test. Sentences were presented against a) speech-shaped noise (SSN), b) female interferer talker (FIT), and c) diffuse cafeteria noise (DCN). Speech was always presented from the front (S0) whereas the interferers a) and b) were either presented from the front (N0), the CI side or the acoustical hearing side.SSD subjects had a median SRT of -8,1 dB for S0N0 SSN-condition and BiM subjects -4,6 dB. For FIT, median SRT was -15,8 dB (SSD) and -5,9 dB (BiM). When changing the interferer direction, both groups show comparable spatial-releas-from-masking effects. SRTs strongly depend on the interferer condition and the DCN scene led to a significant deterioration in both groups. Advanced speech tests are needed to further close the gap between clinical audiology and daily-life listening experiences.