Experiencing Room Acoustics Through a Library of Multichannel High-Resolution Room Impulse Responses
* Presenting author
A large room impulse response library being developed at McGill University consists of more than 10,000 individual IRs captured using multichannel microphone techniques in a large variety of acoustic spaces. The challenge is to maximize the learning value of this resource by maximizing the way the library can be experienced. To accomplish this a search interface is developed for the library that uses audio signal features, and statistical and analytical treatment, to add rich metadata describing perceptual qualities, acoustical parameters, and physical characteristics. The user is able to explore 3D graphic models of venues and audition different locations of sources and receivers, using a variety of anechoic sources. Moreover, an integrated convolution reverberation plugin enables the user to employ searched spaces for live music productions and post-production. Strict criteria are followed to maximize the sonic quality of rendering and of the exploration experience.