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Thursday, October 28 • 9:00pm - Friday, December 3 • 6:00pm
Deconvolution of Room Impulse Responses from Simultaneous Excitation of Loudspeakers

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Traditional room-equalization involves exciting one loudspeaker at a time and deconvolving the loudspeaker-room response from the recording. As the number of loudspeakers and positions increase, the time required to measure loudspeaker-room responses will increase. In this paper, we present a technique to deconvolve impulse responses after exciting all loudspeakers at the same time. The stimuli are shifted relative to a base-stimuli and are optionally pre-processed with arbitrary filters to create specific sounding signals. The stimuli shift ensures capture of the low-frequency reverberation tail after deconvolution. Various deconvolution techniques including correlation-based, and adaptive filter-based, are presented. The performance is characterized in terms of plots and objective metrics using responses from the Multichannel Acoustic Reverberation Dataset (MARDY) dataset.

avatar for Sunil G. Bharitkar

Sunil G. Bharitkar

Samsung Research America

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