An important hearing aid parameter for determining gain for soft sounds is the compression threshold (CT). Previous research using fast-acting single-channel hearing aids indicates that most hearing-aid users prefer a moderate-level CT rather than a low-level CT. The aim of the current study was to investigate if the subjectively preferred CT was influenced by either compression speed and/or the participants’ previous hearing aid experience.
The results showed that the inexperienced hearing aid users were less likely to prefer low CT compared to the experienced hearing aid users. The overall CT preference was not influenced by compression speed. In specific listening situations, the participants most often had no preference for either a moderate or low CT. If they had a preference in specific listening situations, they most often preferred the moderate CT, except for situations with quiet speech when combined with slow-acting compression. Overall, the results were not strongly in favor of the use of either a low or moderate CT. The findings also provided preliminary evidence that CT preference is related to the hearing aid gain acclimatization effect.
Publications and Presentations
Connor Sørensen H. 2010. Hearing aid amplification at soft input levels Centre for Applied Hearing Research (CAHR). Copenhagen: Technical University of Denmark, p. 145.
HEAL (International Conference on Adult Hearing Screening), Cernobbio (Como Lake, Italy), 2010.
STAF (National Swedish conference for engineers and technicians), Eskilstuna (Sweden), 2010.
TeMA Hörsel (National conference for Audiologists, Engineers and ENT specialists), Jönköping (Sweden), 2009.