Archives of Acoustics, 6, 2, pp. 135-146, 1981

The blurred cut-off frequency of acoustic horns

Tomasz ZAMORSKI
Institute of Physics of Higher Pedagogical School
Poland

On the basis of discussion of the Webster equation the conditions and possibilities of a blurred cut-off frequency for horns of arbitrary geometry were analyzed. The transmission properties of horns in the blurred region were discussed. Subsequently the blurred cut-off frequency was considered for hyperbolic horns of annular cross-section.
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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

References

A. H. BENADE, E. V. JANSSON, On plane and spherical waves horns with nonuniform flare, Acustica, 31, 2, 79-89 (1974).

A. S. DAWYDOW, Quantum mechanics (in Polish), PWN, Warszawa 1967.

S. FLUGGE, H. MARSCHALL, Calculation methods of quantum theory (in Polish), PWN, Warszawa 1958.

A. PUCH, Generalized model of an axial dynamic generator, Archives of Acoustics, 3, 1, 17-34 (1978).