Deconvolution of Room Impulse Responses from Simultaneous Excitation of Loudspeakers

Bharitkar S. Deconvolution of Room Impulse Responses from Simultaneous Excitation of Loudspeakers. In: AES Convention 151. Audio Engineering Society; 2021. Paper 10509. Available from: https://aes.org/publications/elibrary-page/?id=21473

@inproceedings{Bharitkar2021_21473,
  author = {Bharitkar, Sunil},
  title = {{Deconvolution of Room Impulse Responses from Simultaneous Excitation of Loudspeakers}},
  booktitle = {AES Convention 151},
  note = {Paper 10509},
  year = {2021},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21473}
}

TY  - CPAPER
TI  - Deconvolution of Room Impulse Responses from Simultaneous Excitation of Loudspeakers
AU  - Bharitkar, Sunil
T2  - AES Convention 151
M1  - Paper 10509
PY  - 2021
DA  - 2021/10/06
UR  - https://aes.org/publications/elibrary-page/?id=21473
PB  - Audio Engineering Society
LA  - en
AB  - 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 with and without spectrum-shaping filters, are presented. The performance in terms of log-spectral distortion, as a function of stimuli length and shift, and impulse and magnitude response error plots for the Multichannel Acoustic Reverberation Dataset at York (MARDY) are presented.
ER  -