Evaluation of nonlinear frequency compression: Clinical outcomes

Autor: Vijay Parsa, Richard C. Seewald, Andrew M. Johnson, Susan Scollie, Danielle Glista, Marlene Bagatto
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Male
Speech recognition
Audiology
01 natural sciences
Language and Linguistics
0302 clinical medicine
Treatment outcome
030223 otorhinolaryngology
10. No inequality
Child
Hearing Loss
High-Frequency
010301 acoustics
Children
Aged
80 and over
Signal processing
medicine.diagnostic_test
Speech perception
Patient Preference
Signal Processing
Computer-Assisted
Middle Aged
16. Peace & justice
Clinical trial
Pattern Recognition
Physiological
Pattern recognition (psychology)
Audiometry
Pure-Tone
Original Article
Female
medicine.symptom
Psychology
Consonant
Linguistics and Language
medicine.medical_specialty
Hearing aids
Adolescent
Hearing loss
Speech detection threshold
Communication Sciences and Disorders
03 medical and health sciences
Speech and Hearing
Double-Blind Method
0103 physical sciences
medicine
otorhinolaryngologic diseases
Humans
Digital signal processing
Aged
Voice activity detection
business.industry
Linguistics
Acoustic Stimulation
Nonlinear Dynamics
Frequency compression
Audiometry
business
Zdroj: International Journal of Audiology
Communication Sciences and Disorders Publications
ISSN: 1708-8186
1499-2027
Popis: This study evaluated prototype multichannel nonlinear frequency compression (NFC) signal processing on listeners with high-frequency hearing loss. This signal processor applies NFC above a cut-off frequency. The participants were hearing-impaired adults (13) and children (11) with sloping, high-frequency hearing loss. Multiple outcome measures were repeated using a modified withdrawal design. These included speech sound detection, speech recognition, and self-reported preference measures. Group level results provide evidence of significant improvement of consonant and plural recognition when NFC was enabled. Vowel recognition did not change significantly. Analysis of individual results allowed for exploration of individual factors contributing to benefit received from NFC processing. Findings suggest that NFC processing can improve high frequency speech detection and speech recognition ability for adult and child listeners. Variability in individual outcomes related to factors such as degree and configuration of hearing loss, age of participant, and type of outcome measure. © 2009 Informa UK Ltd All rights reserved.
Databáze: OpenAIRE
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