| Autor: |
Lotterman, Stephen H., Kasten, Roger N. |
| Zdroj: |
Journal of Speech, Language, and Hearing Research (JSLHR); September 1967, Vol. 10 Issue: 3 p593-599, 7p |
| Abstrakt: |
To investigate the relationship of nonlinear distortion to gain control position, 35 hearing aids of differing makes and models were examined. Distortion levels were observed at eight gain settings, each of which represented 12.5% of the total available rotation of the gain control. Distortion was measured at 500, 700, 900 Hz, and at the frequency of maximum distortion. The results support previous findings of high nonlinear distortion at or near maximum acoustic gain in some hearing aids. In order to obtain reductions in the distortion levels observed at full-on gain, extensive counter rotations of the gain control dial frequently were necessary. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
