Sound Quality Judgments in Class A and Class D Hearing Aids Since the introduction of Class D integrated receivers for hearing aids in 1988, the use of Class D output amplifier stages has received wide acceptance. Part of this popularity is due to the high efficiency of Class D operation (Carlson, 1988) and part is due to reported improved sound quality. ... Clinical Focus: Grand Rounds
Clinical Focus: Grand Rounds  |   July 01, 1997
Sound Quality Judgments in Class A and Class D Hearing Aids
 
Author Affiliations & Notes
  • Jeremy Agnew, PhD
    Starkey Laboratories, Inc., 1110 Elkton Drive, Unit E, Colorado Springs, CO 80907
  • Lisa Gulledge Potts
    Washington University School of Medicine, St. Louis, MO
  • Michael Valente
    Washington University School of Medicine, St. Louis, MO
Article Information
Hearing Aids, Cochlear Implants & Assistive Technology / Clinical Focus / Grand Rounds
Clinical Focus: Grand Rounds   |   July 01, 1997
Sound Quality Judgments in Class A and Class D Hearing Aids
American Journal of Audiology, July 1997, Vol. 6, 33-44. doi:10.1044/1059-0889.0602.33
History: Received April 30, 1996 , Accepted January 6, 1997
 
American Journal of Audiology, July 1997, Vol. 6, 33-44. doi:10.1044/1059-0889.0602.33
History: Received April 30, 1996; Accepted January 6, 1997
Acknowledgments
The authors thank Jerry Wahl of Starkey Laboratories for designing and constructing the test hearing aids used for this study, and for analysis and testing of Class A and Class D output stage distortion characteristics. The authors also thank Linda Thibodeau, whose insightful comments were helpful in interpreting the data.
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