Author (s)
Diogo Alarcão 1, 2, António Couto Pinto 2, Gabriela Marramaque 2, Francisco Mendonça 2
Affiliation
1 CESEM – Centre for the Study of the Sociology and Aesthetics of Music
2 Music Technologies, Lisbon School of Music (ESML), Polytechnic University of Lisbon (IPL), Portugal
Publication date
2024
Abstract
REVERBDATA is a Room Impulse Response (RIR) database of significant Portuguese spaces, considering their acoustical, architectural, cultural, and functional significance. Multichannel IR recordings are made at various points within these spaces, processed, and added to the database, accessible through a user-friendly interface for navigation and artificial reverberation generation. Utilizing advanced measurement and processing techniques, diverse impulse responses in different multi-channel formats are acquired to enable immersive sound reproduction via FFT convolution reverb. While existing RIR databases like Aachen Impulse Response (AIR), MOTUS, MIT IR Survey, Aalto Acoustics Laboratory, and OpenAIR offer extensive collections, they predominantly feature spaces that are common with limited representation of significant ones. The REVERBDATA Project develops a Diogo Alarcão, António Couto Pinto, Gabriela Marramaque, Francisco Mendonça, Portuguese acoustical heritage database characterizing significant architectonic spaces, thus serving as a valuable resource for professionals in sound engineering, architecture, and interior design, but also in the social sciences. It encompasses various spaces such as concert halls, theatres, churches, and other culturally significant venues nationwide. Detailed information including ISO 3382-1 acoustical parameters, architectural features, dimensions, materials, and other relevant factors influencing acoustics is provided. Currently, the REVERBDATA database contains approximately 375 highresolution impulse responses in formats such as AB stereo, binaural, and 1st, 2nd, and 3rd order Ambisonics, covering over 140 locations across 15 significant spaces.
Full paper
https://www.spacustica.pt/acustica2024/pdf/papers/ID46.pdf
Keywords
Portuguese acoustical heritage, multichannel room impulse response, convolution reverb