Patent ID: 8929566
Filing Date: 2015-01-06
Classification: G10L,H04R

Abstract:
1. A method of reducing power consumption in a binaural listening system that processes an audio signal in a portable hearing aid of the binaural listening system, the audio signal comprising a low frequency part having an LF-bandwidth Δf LF and a high-frequency part having a HF-bandwidth Δf HF , the method comprising: providing a first portable hearing aid and a second portable hearing aid; receiving power in each of the first and second portable hearing aids from a local source of energy in each respective portable hearing aid; providing an audio input signal consisting of said low frequency part having an LF-bandwidth Δf performing signal processing on the low frequency part of the audio signal by the second portable hearing aid; wirelessly transmitting the low frequency part from the second portable hearing aid to the first portable hearing aid; receiving the transmitted low frequency part by the first portable hearing aid; and performing a bandwidth extension process on said low frequency part of the audio signal by the first portable hearing aid to generate said high-frequency part of the audio signal, thereby generating or regenerating an audio output signal with a full bandwidth Δf the LF-bandwidth Δf the performing of said signal processing includes performing at least a majority of the processing steps of