Comparison of two methods for measurement of horn input impedance

Hans Schurer*, Peter Annema, Hans–Elias De Bree, Cornelis H. Slump, Otto E. Herrmann

*Corresponding author for this work

    Research output: Contribution to journalReview articleAcademicpeer-review

    2 Citations (Scopus)


    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 languageEnglish
    Pages (from-to)1119-1125
    JournalAES: Journal of the Audio Engineering Society
    Issue number12
    Publication statusPublished - 1 Dec 1998


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