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Convention Paper

Estimation of Object-Based Reverberation Using an Ad-Hoc Microphone Arrangement for Live Performance

Authors: Remaggi, Luca; Jackson, Philip; Coleman, Philip; Parnell, Tom

AES Convention 144 · Paper 10028 · May 2018

Abstract

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.

Details

Published in
AES Convention 144
AES Convention
144
Paper number
10028
Publication date
May 6, 2018
Session subject
Audio Applications
Affiliation
University of Surrey, Guildford, Surrey, UK; BBC Research & Development, Salford, UK (See document for exact affiliation information.)
Type
Convention Paper