DSP Loudspeaker 3D Complex Correction

Catala Iborra VM, Li FF. DSP Loudspeaker 3D Complex Correction. In: AES Convention 146. Audio Engineering Society; 2019. Paper 10140. Available from: https://aes.org/publications/elibrary-page/?id=20273

@inproceedings{CatalaIborra2019_20273,
  author = {Catala Iborra, Victor Manuel and Li, Francis F.},
  title = {{DSP Loudspeaker 3D Complex Correction}},
  booktitle = {AES Convention 146},
  note = {Paper 10140},
  year = {2019},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20273}
}

TY  - CPAPER
TI  - DSP Loudspeaker 3D Complex Correction
AU  - Catala Iborra, Victor Manuel
AU  - Li, Francis F.
T2  - AES Convention 146
M1  - Paper 10140
PY  - 2019
DA  - 2019/03/06
UR  - https://aes.org/publications/elibrary-page/?id=20273
PB  - Audio Engineering Society
LA  - en
AB  - An advantageous approach to DSP equalization of loudspeakers is proposed in this paper adopting spatial averages of complex responses acquired from 3D balloon measurements. Alignment of the off-axis impulses responses with the on-axis impulse responses are accomplished using a cross-correlation technique prior to spatial averaging to attain meaningful statistics of magnitude and phase responses. This is performed over a pre-defined listening window from the complete loudspeaker response balloons (both magnitude and phase). The resulted average of the complex response within a suitably defined listening window is used to obtain, via the least mean square adaptive technique, an inverse filter that corrects the linear behavior of the loudspeaker.
ER  -