| 摘要 |
The invention relates to a device for the noise-dependent adjustment of the sound volume of a loudspeaker (8) fed with an electrical useful signal (2, 9) from a signal source (1) on a location of listening that is filled by noise (17). The inventive device comprises two sound volume adjusters (3, 5) that are connected in series and between the signal source (1) and the loudspeaker (8). One of said adjusters (3) can be manually controlled and the other (5) is controlled by a control signal (18). A noise detector (6) determines the noise level (17) and generates the control signal (18) for the other sound volume adjuster (5) in accordance with the noise level (17).
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