Evaluation of Electroacoustic Test Signals I: Comparison with Amplified Speech
| Autor: | Richard C. Seewald, Susan Scollie |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Hearing aid
Engineering medicine.medical_specialty Hearing loss business.industry Speech recognition medicine.medical_treatment Equipment Design Audiology Electric Stimulation Speech Acoustics Test (assessment) Speech and Hearing Hearing Aids Digital subscriber line Otorhinolaryngology Prosthesis Fitting Speech Perception otorhinolaryngologic diseases medicine Humans medicine.symptom business Set (psychology) Hearing Disorders |
| Zdroj: | Ear and Hearing. 23:477-487 |
| ISSN: | 0196-0202 |
| DOI: | 10.1097/00003446-200210000-00009 |
| Popis: | To evaluate the ability of clinical test signals to match the aided levels of real speech, across a range of hearing aid circuit types and strengths.Hearing aids (N = 41) were set to DSL targets for moderate, severe, and profound hearing losses. These hearing aids were tested with three test signals (Fonix Pure Tones, Fonix Composite Noise, and Audioscan Swept), as well as with running speech. The difference between the aided test signal and the aided speech was calculated.Accuracy of matches between aided test signals and aided speech levels depended on circuit type, signal type, and test level.Clinical test signals can more accurately match the aided levels of speech for all types of hearing aids if they are 1) speech-weighted and 2) temporally modulated. Matches were more accurate at low to moderate test levels (i.e., 50 to 70 dB SPL), and less accurate at high test levels (i.e., 85 dB SPL). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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