METHOD FOR PROCESSING AN AUDIO SIGNAL IN ACCORDANCE WITH A ROOM IMPULSE RESPONSE, SIGNAL PROCESSING UNIT, AUDIO ENCODER, AUDIO DECODER, AND BINAURAL RENDERER

摘要

A method for processing an audio signal in accordance with a room impulse response is described. The audio signal is separately processed with an early part and a late reverberation of the room impulse response, and the processed early part of the audio signal and the reverberated signal are combined. A transition from the early part to the late reverberation in the room impulse response is reached when a correlation measure reaches a threshold, the threshold being set dependent on the correlation measure for a selected one of the early reflections in the early part of the room impulse response.

主权项

1. A method for processing an audio signal in accordance with a room impulse response, the method comprising:
separately processing the audio signal with an early part and a late reverberation of the room impulse response; and combining the audio signal processed with the early part of the room impulse response and a reverberated signal, wherein a transition from the early part to the late reverberation in the room impulse response is determined once a correlation measure reaches a threshold, wherein the correlation measure describes with regard to the room impulse response a similarity of a decay in acoustic energy comprising an initial state and of the decay in acoustic energy starting at a time following the initial state over a predefined frequency range, wherein the threshold is set dependent on the correlation measure for a selected one of the early reflections in the early part of the room impulse response, and wherein the selected one of the early reflections is the first reflection.