The perception of telephone-processed speech by combined electric and acoustic stimulation. Trends Amplif 2013;17(3):189-96
Date
11/23/2013Pubmed ID
24265213Pubmed Central ID
PMC4070615DOI
10.1177/1084713813512901Scopus ID
2-s2.0-84890475508 (requires institutional sign-in at Scopus site) 6 CitationsAbstract
This study assesses the effects of adding low- or high-frequency information to the band-limited telephone-processed speech on bimodal listeners' telephone speech perception in quiet environments. In the proposed experiments, bimodal users were presented under quiet listening conditions with wideband speech (WB), bandpass-filtered telephone speech (300-3,400 Hz, BP), high-pass filtered speech (f > 300 Hz, HP, i.e., distorted frequency components above 3,400 Hz in telephone speech were restored), and low-pass filtered speech (f < 3,400 Hz, LP, i.e., distorted frequency components below 300 Hz in telephone speech were restored). Results indicated that in quiet environments, for all four types of stimuli, listening with both hearing aid (HA) and cochlear implant (CI) was significantly better than listening with CI alone. For both bimodal and CI-alone modes, there were no statistically significant differences between the LP and BP scores and between the WB and HP scores. However, the HP scores were significantly better than the BP scores. In quiet conditions, both CI alone and bimodal listening achieved the largest benefits when telephone speech was augmented with high rather than low-frequency information. These findings provide support for the design of algorithms that would extend higher frequency information, at least in quiet environments.
Author List
Hu Y, Tahmina Q, Runge C, Friedland DRAuthors
David R. Friedland MD Associate Director, Director, Chief, Professor in the Otolaryngology department at Medical College of WisconsinChristina Runge PhD Associate Provost, Chief, Professor in the Otolaryngology department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
Acoustic StimulationAdult
Aged
Aged, 80 and over
Auditory Threshold
Cochlear Implantation
Cochlear Implants
Combined Modality Therapy
Cues
Deafness
Electric Stimulation
Female
Hearing Aids
Humans
Male
Middle Aged
Pitch Perception
Signal Processing, Computer-Assisted
Speech Perception
Telephone
