The fast measurement of loudspeaker responses for all azimuthal directions using the continuous measurement method with a turntable

Kawahara K, Iwata M, Tachibana M, Nakaie R. The fast measurement of loudspeaker responses for all azimuthal directions using the continuous measurement method with a turntable. In: AES Convention 155. Audio Engineering Society; 2023. Paper 142. Available from: https://aes.org/publications/elibrary-page/?id=22296

@inproceedings{Kawahara2023_22296,
  author = {Kawahara, Kazuhiko and Iwata, Mizuki and Tachibana, Miyato and Nakaie, Ryo},
  title = {{The fast measurement of loudspeaker responses for all azimuthal directions using the continuous measurement method with a turntable}},
  booktitle = {AES Convention 155},
  note = {Paper 142},
  year = {2023},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22296}
}

TY  - CPAPER
TI  - The fast measurement of loudspeaker responses for all azimuthal directions using the continuous measurement method with a turntable
AU  - Kawahara, Kazuhiko
AU  - Iwata, Mizuki
AU  - Tachibana, Miyato
AU  - Nakaie, Ryo
T2  - AES Convention 155
M1  - Paper 142
PY  - 2023
DA  - 2023/10/06
UR  - https://aes.org/publications/elibrary-page/?id=22296
PB  - Audio Engineering Society
LA  - en
AB  - This paper proposes a method for the fast measurement of loudspeaker impulse responses for all azimuthal di-rections using the continuous measurement method with a turntable. The loudspeaker radiates all azimuthal directions with a constant angular velocity as the turntable rotates, and a measuring microphone records the re-lated radiation sound. In our continuous measurement method, we use a maximum length sequence (MLS) as the excitation signal, record the received signal using a measuring microphone placed in the anechoic room away from the target loudspeaker, and feed them, along with the MLS signal, into a PC so that impulse response can be extracted for all azimuthal directions. This paper describes the concept of the method. Further, some results of the proposed method are veri?ed using physical realization and empirical measurements.
ER  -