Back To Schedule
Thursday, October 28 • 9:00pm - Friday, December 3 • 6:00pm
3D Impulse Response Convolution with Multichannel Direct Sound: Assessing Perceptual Equivalency between Room- and Source- Impression for Music Production

Log in to save this to your schedule, view media, leave feedback and see who's attending!

A method for representing the three-dimensional radiation patterns of instruments/performers within artificial reverberation using multichannel direct sound files convolved with channel-based spatial room impulse responses (SRIRs) is presented. Two reverb conditions are studied in a controlled listening test: a) all SRIR channel positions are convolved with a single monophonic direct sound file, and b) each SRIR channel position is convolved with a unique direct sound file taken from a microphone array surrounding the performer. Participants were asked to adjust the level of each reverberation condition (relative to a fixed direct sound stream) to three perceptual thresholds relating to source- and room- impression. Results of separate three-way within-subject ANOVAs and post-hoc analysis show significant interactions between instrument / room type, and instrument / reverb condition on each of the three thresholds. Most notably, reverb condition b) required less level than condition a) to yield perceptual equivalency between source- and room- impression, suggesting that the inclusion of multichannel direct sound in SRIR convolution may increase the salience of room impression in the immersive reproduction of acoustic music.

avatar for Jack Kelly

Jack Kelly

McGill University
Jack Kelly is. Ph.D. candidate at the Schulich School of Music, McGill University. His thesis research centers on the influence of spatial room impulse response convolution technologies (channel-based and HOA arrays) on the sensation of physical presence in immersive music production. He... Read More →
avatar for Richard King

Richard King

McGill University
Richard King is an Educator, Researcher, and a Grammy Award winning recording engineer. Richard has garnered Grammy Awards in various fields including Best Engineered Album in both the Classical and Non-Classical categories. Richard is an Associate Professor at the Schulich School... Read More →

Wieslaw Woszczyk

McGill University

Thursday October 28, 2021 9:00pm - Friday December 3, 2021 6:00pm EST