We present a novel pipeline to estimate reverberant spatial audio object (RSAO) parameters given room impulse responses (RIRs) recorded by ad-hoc microphone arrangements. The proposed pipeline performs three tasks: direct-to-reverberant-ratio (DRR) estimation; microphone localization; RSAO parametrization. RIRs recorded at Bridgewater Hall by microphones arranged for a BBC Philharmonic Orchestra performance were parametrized. Objective measures of the rendered RSAO reverberation characteristics were evaluated and compared with reverberation recorded by a Soundfield microphone. Alongside informal listening tests, the results confirmed that the rendered RSAO gave a plausible reproduction of the hall, comparable to the measured response. The objectification of the reverb from in-situ RIR measurements unlocks customization and personalization of the experience for different audio systems, user preferences, and playback environments.

Authors: Remaggi, Luca; Jackson, Philip; Coleman, Philip; Parnell, Tom
Affiliations: University of Surrey, Guildford, Surrey, UK; BBC Research & Development, Salford, UK(See document for exact affiliation information.)
AES Convention: 144 (May 2018) Paper Number: 10028
Publication Date: May 14, 2018
Subject: Audio Applications

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