Warren : 'High-frequency and broadband receivers for hearing aids'
New receivers on the market and in development at Knowles increase the
available acoustic output beyond the traditional 6 kHz frequency limit.
Single high-frequency receivers provide output in the 6--10 kHz range
reduced output below 1 kHz, which makes them a good fit for open canal
hearing aids. Combined with a conventional receiver and a crossover, the
pair of receivers can provide useable output from below 100 Hz to above
kHz. Of course, the actual useful frequency range of a transducer depends
enormously on the application and testing conditions. This presentation
will compare available output from these new receivers in traditional
ITE, and CIC) as well as contemporary (thin tube, receiver in canal, and
open canal) hearing aid applications.