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Evaluation of All-Pass Reverberators

The paper presents the structure and the performance of signal processing algorithms that simulate natural room reverberation. It deals with three digital complete artificial reverberators, built up of Schroeder's early reverberator and a late reverberator built with all-pass filters: Schroeder's, Gardner's or absorbent all-pass reverberator. For each of the presented reverberation algorithms acoustic parameters are computed and compared with those of a concert hall.