Device for noise-dependent adaptation of useful acoustic signal has controler for controling sound source depending on comparison of pick-up signal and its useful signal component

摘要

The device has a sound source for generating an electrical signal, a sound converter for producing the useful acoustic signal from the electrical signal, a sound detector for generating an electrical pick-up signal from the useful acoustic signal and an acoustic noise signal, an extractor for extracting the useful signal and a controler for controling the sound source depending on a comparison of the pick-up signal and its useful component. The device has a sound source (1-3,12) for generating an electrical signal set by a control signal, a sound converter (12) for producing the useful acoustic signal (S) from the useful electrical signal (X), a sound detector (13) for generating an electrical pick-up signal (Xm) from the useful acoustic signal and an acoustic noise signal (N), an extractor (6) for extracting the useful signal and a controler (9-11,14) for controling the sound source depending on a comparison of the pick-up signal and its useful signal component. Independent claims are also included for the following: a method of noise-dependent adaptation of a useful acoustic signal incident at a listening position.