1. An apparatus for determining a spatial output multi-channel audio signal based on an input audio signal, comprising: a semantic decomposer configured for decomposing the input audio signal to acquire a first decomposed signal comprising a first semantic property, the first decomposed signal being a foreground signal part, and a second decomposed signal comprising a second semantic property being different from the first semantic property, the second decomposed signal being a background signal part; a renderer configured for rendering the foreground signal part using amplitude panning to acquire a first rendered signal comprising the first semantic property, wherein the renderer comprises an amplitude panning stage for processing the foreground signal part, wherein locally-generated low pass noise is provided to the amplitude panning stage, wherein the amplitude panning stage is configured for temporally varying a panning location of an audio source in the foreground signal part in accordance with the locally generated low pass noise, and wherein the renderer is configured for rendering the background signal part by decorrelating the second decomposed signal to acquire a second rendered signal comprising the second semantic property; and a processor configured for processing the first rendered signal and the second rendered signal to acquire the spatial output multi-channel audio signal.