Comparison of Four Subwoofer Measurement Techniques

Herzog P, Langrenne C, Melon M, Rousseau D, Roux B. Comparison of Four Subwoofer Measurement Techniques. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6833. Available from: https://aes.org/publications/elibrary-page/?id=13637

@inproceedings{Herzog2006_13637,
  author = {Herzog, Philippe and Langrenne, Christophe and Melon, Manuel and Rousseau, David and Roux, Bruno},
  title = {{Comparison of Four Subwoofer Measurement Techniques}},
  booktitle = {AES Convention 120},
  note = {Paper 6833},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13637}
}

TY  - CPAPER
TI  - Comparison of Four Subwoofer Measurement Techniques
AU  - Herzog, Philippe
AU  - Langrenne, Christophe
AU  - Melon, Manuel
AU  - Rousseau, David
AU  - Roux, Bruno
T2  - AES Convention 120
M1  - Paper 6833
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13637
PB  - Audio Engineering Society
LA  - en
AB  - Acoustic measurements at very low frequency are difficult to perform, and the interpretation of the results may often be tricky. In this paper, four subwoofer measurement techniques are compared in terms of frequency response and directivity. The methods used are the following ones: semi-anechoic room, anechoic room, isobaric room, pseudo free-field. Two subwoofers are tested: a closed box system and an active/passive system. For the semi-anechoic technique, double layer pressure measurements on a half-sphere surrounding the source are performed. Then, using a BEM integral formulation, outgoing and ingoing pressure fields are separated to recover free field conditions (i.e. removal of reflections on walls below room cut-off). Discrepancies between results are discussed and explained when possible.
ER  -