title: Multifractal analysis of visualized room impulse response for detecting early reflections.
abstract: This paper describes an improved method for detecting early reflections in the initial part of the room impulse response using multifractals. The proposed method uses the two-dimensional multifractal analysis. The room impulse response is visualized as a spectrogram image which is then subjected to the multifractal analysis. The algorithm is based on describing local regularity in the image using distribution of Hölder exponents. The time positions of the selected Hölder exponents in the image are utilized in detecting early reflections. The obtained results show better efficiency of the proposed algorithm compared to the previous one-dimensional multifractal analysis based algorithm.
authors.affiliation: School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia milan.pavlovic@ict.edu.rs, ristic.dragan@gmail.com, irini@etf.rs, emijic@etf.rs.
authors.forename: Milan
authors.initials: M
authors.lastname: Pavlović
authors.affiliation: School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia milan.pavlovic@ict.edu.rs, ristic.dragan@gmail.com, irini@etf.rs, emijic@etf.rs.
authors.forename: Dragan M
authors.initials: DM
authors.lastname: Ristić
authors.affiliation: School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia milan.pavlovic@ict.edu.rs, ristic.dragan@gmail.com, irini@etf.rs, emijic@etf.rs.
authors.forename: Irini
authors.initials: I
authors.lastname: Reljin
authors.affiliation: School of Electrical Engineering, University of Belgrade, Bulevar kralja Aleksandra 73, 11000 Belgrade, Serbia milan.pavlovic@ict.edu.rs, ristic.dragan@gmail.com, irini@etf.rs, emijic@etf.rs.
authors.forename: Miomir
authors.initials: M
authors.lastname: Mijić