Abstract
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.
Original language | English |
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Pages (from-to) | 1119-1125 |
Journal | AES: Journal of the Audio Engineering Society |
Volume | 46 |
Issue number | 12 |
Publication status | Published - 1 Dec 1998 |