RIR2FDN: An Improved Room Impulse Response Analysis and Synthesis - Institut de Recherche et Coordination Acoustique/Musique
Conference Papers Year : 2024

RIR2FDN: An Improved Room Impulse Response Analysis and Synthesis

Gloria Dal Santo
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Benoit Alary
Karolina Prawda
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Vesa Välimäki
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Abstract

This paper seeks to improve the state-of-the-art in delay-networkbased analysis-synthesis of measured room impulse responses (RIRs). We propose an informed method incorporating improved energy decay estimation and synthesis with an optimized feedback delay network. The performance of the presented method is compared against an end-to-end deep-learning approach. A formal listening test was conducted where participants assessed the similarity of reverberated material across seven distinct RIRs and three different sound sources. The results reveal that the performance of these methods is influenced by both the excitation sounds and the reverberation conditions. Nonetheless, the proposed method consistently demonstrates higher similarity ratings compared to the end-to-end approach across most conditions. However, achieving an indistinguishable synthesis of measured RIRs remains a persistent challenge, underscoring the complexity of this problem. Overall, this work helps improve the sound quality of analysis-based artificial reverberation.
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hal-04695760 , version 1 (12-09-2024)

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  • HAL Id : hal-04695760 , version 1

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Gloria Dal Santo, Benoit Alary, Karolina Prawda, Sebastian J Schlecht, Vesa Välimäki. RIR2FDN: An Improved Room Impulse Response Analysis and Synthesis. 27th International Conference on Digital Audio Effects (DAFx24), University of Surrey, Sep 2024, Guildford, United Kingdom. ⟨hal-04695760⟩
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