Single-Channel Maximum-Likelihood T60 Estimation Exploiting Subband Information

Löllmann H, Brendel A, Vary P, Kellermann W (2015)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2015

City/Town: New Paltz (New York), USA

Pages Range: 1-5

Event location: New Paltz (New York) US

URI: https://arxiv.org/abs/1511.04063

Abstract

This contribution presents four algorithms developed by the authors for single-channel fullband and subband T60 estimation within the ACE challenge. The blind estimation of the fullband reverberation time (RT) by maximum-likelihood (ML) estimation based on [15] is considered as baseline approach. An improvement of this algorithm is devised where an energy-weighted averaging of the upper subband RT estimates is performed using either a DCT or 1/3-octave filter-bank. The evaluation results show that this approach leads to a lower variance for the estimation error in comparison to the baseline approach at the price of an increased computational complexity. Moreover, a new algorithm to estimate the subband RT is devised, where the RT estimates for the lower octave subbands are extrapolated from the RT estimates of the upper subbands by means of a simple model for the frequency-dependency of the subband RT. The evaluation results of the ACE challenge reveal that this approach allows to estimate the subband RT with an estimation error which is in a similar range as for the presented fullband RT estimators.

Authors with CRIS profile

Heinrich Löllmann Professur für Signalverarbeitung Andreas Brendel Lehrstuhl für Multimediakommunikation und Signalverarbeitung (LMS) Walter Kellermann Professur für Signalverarbeitung

How to cite

APA:

Löllmann, H., Brendel, A., Vary, P., & Kellermann, W. (2015). Single-Channel Maximum-Likelihood T60 Estimation Exploiting Subband Information. In Proceedings of the ACE Challenge Workshop (pp. 1-5). New Paltz (New York), US: New Paltz (New York), USA.

MLA:

Löllmann, Heinrich, et al. "Single-Channel Maximum-Likelihood T60 Estimation Exploiting Subband Information." Proceedings of the ACE Challenge Workshop, New Paltz (New York) New Paltz (New York), USA, 2015. 1-5.

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