Audio processor for generating a reverberated signal from a direct signal component (100, 800), comprising: a reverberator for reverberating the direct signal component (100, 800) to obtain a reverberation signal component (806, 102); an apparatus for determining a measure for a perceived level of reverberation in a mix signal comprising the direct signal component (100, 800) and the reverberation signal component (806, 102), the apparatus comprising: a loudness model processor comprising a perceptual filter stage for filtering the direct signal component (100, 800), the reverberation signal component (806, 102) or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal; a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component (100, 800) and the reverberation signal component (806, 102); and a combiner for combining the first loudness measure and the second loudness measure to obtain the measure for the perceived level of reverberation; a controller for receiving the measure for the perceived level of reverberation, and for generating a control signal in accordance with the perceived level of reverberation and a target value; a manipulator for manipulating the direct signal component (100, 800) to obtain a manipulated direct signal component or for manipulating the reverberation signal component (806, 102) to obtain a manipulated reverberation signal component in accordance with the control signal; and a combiner for combining the manipulated direct signal component and the manipulated reverberation signal component, or for combining the direct signal component (100, 800) and the manipulated reverberation signal component, or for combining the manipulated direct signal component and the reverberation signal component (806, 102) to obtain the reverberated signal. a reverberator for reverberating the direct signal component (100, 800) to obtain a reverberation signal component (806, 102); an apparatus for determining a measure for a perceived level of reverberation in a mix signal comprising the direct signal component (100, 800) and the reverberation signal component (806, 102), the apparatus comprising: a loudness model processor comprising a perceptual filter stage for filtering the direct signal component (100, 800), the reverberation signal component (806, 102) or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal; a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component (100, 800) and the reverberation signal component (806, 102); and a combiner for combining the first loudness measure and the second loudness measure to obtain the measure for the perceived level of reverberation; a loudness model processor comprising a perceptual filter stage for filtering the direct signal component (100, 800), the reverberation signal component (806, 102) or the mix signal, wherein the perceptual filter stage is configured for modeling an auditory perception mechanism of an entity to obtain a filtered direct signal, a filtered reverberation signal or a filtered mix signal; a loudness estimator for estimating a first loudness measure using the filtered direct signal and for estimating a second loudness measure using the filtered reverberation signal or the filtered mix signal, where the filtered mix signal is derived from a superposition of the direct signal component (100, 800) and the reverberation signal component (806, 102); and a combiner for combining the first loudness measure and the second loudness measure to obtain the measure for the perceived level of reverberation; a controller for receiving the measure for the perceived level of reverberation, and for generating a control signal in accordance with the perceived level of reverberation and a target value; a manipulator for manipulating the direct signal component (100, 800) to obtain a manipulated direct signal component or for manipulating the reverberation signal component (806, 102) to obtain a manipulated reverberation signal component in accordance with the control signal; and a combiner for combining the manipulated direct signal component and the manipulated reverberation signal component, or for combining the direct signal component (100, 800) and the manipulated reverberation signal component, or for combining the manipulated direct signal component and the reverberation signal component (806, 102) to obtain the reverberated signal.