Schedule as of Oct 11, 2022 - subject to change

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Wednesday, October 19 • 1:30pm - 2:00pm
Validation Results of 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. We presented a technique to deconvolve impulse responses after exciting all loudspeakers simultaneously . This paper presents the results of our de-convolution method compared with the traditional approach in real listening environments. We will compare the results of three different stimuli we used for testing and validating our approach: 11-channel, 7-channel, and 4-channel time-shifted log-sweeps. We measured the loudspeakers in 3 different room settings: ITU standard-based listening room, reference room, and home environment. The performance results are depicted in plots comparing the true (single-channel-at-a-time) responses with the responses obtained from the proposed approach. We also present objective metrics using log spectral distortion.

avatar for Sunil Bharitkar

Sunil Bharitkar

Samsung Research America

Wednesday October 19, 2022 1:30pm - 2:00pm EDT