Estimation of Multi-Slope Amplitudes in Late Reverberation
Bai B, Schlecht S (2025)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2025
Pages Range: 194 - 201
Conference Proceedings Title: Proceedings of the 28th International Conference on Digital Audio Effects (DAFx25)
Event location: Ancona, Italy
URI: https://dafx.de/paper-archive/2025/DAFx25_paper_28.pdf
Abstract
The common-slope model is used to model late reverberation of complex room geometries such as multiple coupled rooms. The model fits band-limited room impulse responses using a set of common decay rates, with amplitudes varying based on listener positions. This paper investigates amplitude estimation methods within the common-slope model framework. We compare several traditional least squares estimation methods and propose using LINEX regression, a Maximum Likelihood approach using log-squared RIR statistics. Through statistical analysis and simulation tests, we demonstrate that LINEX regression improves accuracy and reduces bias when compared to traditional methods.
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How to cite
APA:
Bai, B., & Schlecht, S. (2025). Estimation of Multi-Slope Amplitudes in Late Reverberation. In Proceedings of the 28th International Conference on Digital Audio Effects (DAFx25) (pp. 194 - 201). Ancona, Italy, IT.
MLA:
Bai, Baoqi, and Sebastian Schlecht. "Estimation of Multi-Slope Amplitudes in Late Reverberation." Proceedings of the 2025 International Conference on Digital Audio Effects (DAFx), Ancona, Italy 2025. 194 - 201.
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