Patent ID: 11910182
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for processing an audio signal in accordance with a room impulse response, the method comprising:
applying the audio signal as an input signal to an early part processor and to a late reverberation processor;
receiving, by the early part processor, a direct sound and early reflections of the room impulse response and processing the audio signal using the direct sound and early reflections to obtain a processed audio signal;
receiving, by the late reverberation processor, predefined reverberator parameters and processing the audio signal using the predefined reverberator parameters to obtain a reverberated signal;
wherein processing the audio signal by the late reverberation processor comprises a scaling to obtain a scaled reverberated signal; and
combining the processed audio signal and the scaled reverberated signal,
wherein the scaling comprises:
setting a gain factor according to a predefined correlation measure of the audio signal, the predefined correlation measure having a fixed value determined empirically on the basis of an analysis of a plurality of audio signals, and applying the gain factor, or
obtaining a gain factor using a correlation analysis of the audio signal, and
applying the gain factor.