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, the renderer comprising an amplitude panning stage for processing the foreground signal part, wherein locally-generated low pass noise is provided to the amplitude panning stage for temporally varying a panning location of an audio source in the foreground signal part; and 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.