Comparison of Two Methods for Measurement of Horn Input Impedance

Schurer H, Annema P, De Bree HE, Slump CH, Herrmann OE. Comparison of Two Methods for Measurement of Horn Input Impedance. J Audio Eng Soc. 1998;46(12):1119-1125. Available from: https://aes.org/publications/elibrary-page/?id=12119

@article{Schurer1998_12119,
  author = {Schurer, Hans and Annema, Peter and De Bree, Hans-Elias and Slump, Cornelis H. and Herrmann, Otto E.},
  title = {{Comparison of Two Methods for Measurement of Horn Input Impedance}},
  journal = {Journal of the Audio Engineering Society},
  volume = {46},
  number = {12},
  pages = {1119--1125},
  year = {1998},
  month = dec,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12119}
}

TY  - JOUR
TI  - Comparison of Two Methods for Measurement of Horn Input Impedance
AU  - Schurer, Hans
AU  - Annema, Peter
AU  - De Bree, Hans-Elias
AU  - Slump, Cornelis H.
AU  - Herrmann, Otto E.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 46
IS  - 12
SP  - 1119
EP  - 1125
PY  - 1998
DA  - 1998/12/06
UR  - https://aes.org/publications/elibrary-page/?id=12119
PB  - Audio Engineering Society
LA  - en
AB  - Two methods to measure the acoustic input impedance of a horn are compared. The first method measures standing-wave patterns in a tube which is loaded by the horn. The input impedance is calculated from the position of the first minimum in the standing-wave pattern and the ratio of maximum to minimum sound pressure levels in the tube. Second a direct method was applied. A novel flow sensor, the microflown, is used together with a pressure microphone, which are mounted in the throat of the horn. Results from both measurements are compared with simulated models.
ER  -