COMPRESSOR ARCHITECTURE FOR AVOIDANCE OF CROSS-MODULATION IN REMOTE MICROPHONES

摘要

The present disclosure relates to the inclusion of amplitude compression inside a hearing aid remote microphone or audio streaming device. Compressor design is improved by using one local and one remote compressor operating in parallel. The subject matter will reference remote microphones as the primary use case. In one embodiment, hearing aid microphone audio and remote microphone audio are treated as two separate streams within the hearing aid, assigning each to a compressor and mixing the audio streams afterward. In another embodiment, a compressor is developed for the remote microphone to offload that portion of the signal processing.

主权项

1. A method for reducing the effect of hearing assistance device cross-modulation using a remote hearing assistance device, the method comprising:
sending a plurality of remote frequency band gains to a remote hearing assistance device, the remote hearing assistance device configured to decompose a remote audio signal into a plurality of remote frequency band signals and apply the plurality of remote frequency band gains to the plurality of remote frequency band signals to generate a plurality of remote amplified frequency bands, wherein the remote frequency band gains correspond to a remote noise environment and to a hearing loss profile of a hearing assistance user; receiving the plurality of remote amplified frequency bands at a local hearing assistance device associated with the hearing assistance user; and combining, using a signal adder, a plurality of local amplified frequency bands with the remote amplified frequency bands to generate a combined amplified audio output signal.