An Acoustical Measurement Method for the Derivation of Loudspeaker Parameters

Anderson BE, Leishman TW. An Acoustical Measurement Method for the Derivation of Loudspeaker Parameters. In: AES Convention 115. Audio Engineering Society; 2003. Paper 5865. Available from: https://aes.org/publications/elibrary-page/?id=12475

@inproceedings{Anderson2003_12475,
  author = {Anderson, Brian E. and Leishman, Timothy W.},
  title = {{An Acoustical Measurement Method for the Derivation of Loudspeaker Parameters}},
  booktitle = {AES Convention 115},
  note = {Paper 5865},
  year = {2003},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12475}
}

TY  - CPAPER
TI  - An Acoustical Measurement Method for the Derivation of Loudspeaker Parameters
AU  - Anderson, Brian E.
AU  - Leishman, Timothy W.
T2  - AES Convention 115
M1  - Paper 5865
PY  - 2003
DA  - 2003/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12475
PB  - Audio Engineering Society
LA  - en
AB  - Because loudspeaker drivers are electro-mechano-acoustical transducers, their parameters may be measured from physical domains other than the electrical domain. A method has been developed by the authors to determine moving-coil loudspeaker parameters through the use of acoustical measurements. The technique utilizes a plane wave tube and the two-microphone transfer function technique to measure acoustical properties of a baffled driver under test (DUT). Quantities such as the reflection and transmission coefficients of the DUT are first measured. Driver parameters are then extracted from the measurements using curve-fitting techniques and theoretical solutions to equivalent circuits of the composite system. This paper discusses the acoustical measurement apparatus, system modeling, and a comparison of acoustically measured parameters to those measured using common electrical techniques. Parameters derived from the various methods are also compared to reference parameters to establish bias errors.
ER  -