Abstract: A method for influencing noise in a space, such as an open-space office, whereby active sound suppression and/or sound masking is/are undertaken. In order to advantageously undertake active sound suppression or sound masking in a larger space, for example an open-space office, a plurality of sound actuators are provided distributed over the surface area of the space, and at least one sound sensor is disposed in the space, and two or more of the sound actuators are acted on differently, with regard to sound values detected by the sound sensor and/or with regard to a desired sound-related space division and/or as the result of person signals or object signals that are detected.

Abstract: The invention relates to a foam part (1), in particular for suspended arrangement in a room, for example for use as a sound absorber (2), with an acoustic region of the foam part which has an outer contour being illuminated by a lighting element (11), further with the lighting element (11) being mounted on the foam part (1) and being disposed within the outer contour of the foam part (1). In particular, the invention also relates to a foam part (1) which is fixed, as a sound absorber (2), in a suspended manner to a room ceiling (3) or room wall, a lighting element (11) which is mounted on the sound absorber (2) and illuminates a subregion of the foam part (1), being provided in said foam part.