HEARING AID WITH INCREASED ACOUSTIC BANDWIDTH

摘要

A hearing aid (21) includes a signal processor producing signals that have been processed to compensate for a hearing impairment, a first output converter (26), a second output converter (27), a first acoustic output transducer (34) and at least a second output transducer (35). The first output converter (26) and the first output transducer (34) are configured to reproduce the high frequencies of the processed signals, and the second output converter (27) and the second output transducer (35) are configured to reproduce the low frequencies of the processed signals. The output converters (26, 27) may preferably be embodied as direct digital drive output converters. The processed signals are split between the first and second output converters according to a cross-over frequency tunable by programming.

主权项

1. A hearing aid comprising:
a digital signal processor configured to process a digital signal according to a prescription scheme in order to alleviate a hearing loss, and to output processed signals to: a first digital output stage having a first acoustic output transducer for reproducing low frequencies of the processed signals, and a second digital output stage having a second acoustic output transducer for reproducing high frequencies of the processed signals; wherein the signal processor has a frequency selection component operable on the processed signals to split the processed signals according to a cross-over frequency into the first and the second digital output stage; and wherein the cross-over frequency is set by programming.