| 摘要 |
The invention relates to a method of operating a hearing instrument (11) having an electro-acoustic (12) or electro-mechanical output transducer (54), wherein, as long as a high battery status is detected, a standard audio signal processing mode is selected; and, once a low battery status has been detected, a low power audio signal processing mode is selected, having reduced power consumption compared to the standard audio signal processing mode in order to extend battery lifetime, wherein the low power audio signal processing mode includes at least one of the following changes compared to the standard audio signal processing mode: selectively reducing the gain at predefined frequencies compared to the gain at other frequencies less relevant for speech intelligibility; switching-off at least one of the following audio signal processing functions for at least part of the audio frequencies: feedback canceling, auditory scene classification, frequency compression, noise reduction, pinna simulation, and acoustic beamforming; switching off, at least on a regular temporary base for at least reducing the duty cycle thereof, parts of a processor (30) and/or a memory (32) of the digital audio signal processing unit; reducing power consumption of an audio signal preamplifier (34A, 34B), an audio signal analog-to-digital converter (36A, 36B) and/or an audio signal digital-to-analog converter (38) by reducing the dynamic range thereof. |
