Holographic Nearfield Measurement of Loudspeaker Directivity

Klippel W, Bellmann C. Holographic Nearfield Measurement of Loudspeaker Directivity. In: AES Convention 141. Audio Engineering Society; 2016. Paper 9598. Available from: https://aes.org/publications/elibrary-page/?id=18402

@inproceedings{Klippel2016_18402,
  author = {Klippel, Wolfgang and Bellmann, Christian},
  title = {{Holographic Nearfield Measurement of Loudspeaker Directivity}},
  booktitle = {AES Convention 141},
  note = {Paper 9598},
  year = {2016},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=18402}
}

TY  - CPAPER
TI  - Holographic Nearfield Measurement of Loudspeaker Directivity
AU  - Klippel, Wolfgang
AU  - Bellmann, Christian
T2  - AES Convention 141
M1  - Paper 9598
PY  - 2016
DA  - 2016/09/06
UR  - https://aes.org/publications/elibrary-page/?id=18402
PB  - Audio Engineering Society
LA  - en
AB  - The acoustical output of loudspeaker systems is usually measured in the far field under anechoic conditions requiring a large measurement distance and special treatment of the room (absorbing room boundaries, air condition). Also the measurements of directivity characteristics at sufficient angular resolution are also very time consuming. The measurement in the near field of the sound source provides significant benefits (dominant direct sound, higher SNR, less climate impact) but requires a scanning process and a holographic processing of the measured data. This paper describes the theoretical basis of the new measurement technique and the practical consequences for the loudspeaker diagnostics.
ER  -