Repetition pitch glide from the step pyramid at Chichen Itza (L)

Journal of the Acoustical Society of America

Volumn 120, Issue 2, 2006, Pages 594-596

  Bilsen, Frans A ^a  

^a NONE   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC WAVE DIFFRACTION; REFLECTION; SIGNAL RECEIVERS; SONOCHEMISTRY;

MAYAN STEP PYRAMID; OPTICAL BRAGG DIFFRACTION; REPETITION PITCH GLIDE; SOURCE-RECEIVER;

AUDITION;

ACOUSTICS; ARTICLE; MATHEMATICAL MODEL; MEXICO; NOISE; PITCH; PRIORITY JOURNAL; SOUND INTENSITY; SOUND TRANSMISSION;

ACOUSTICS; FACILITY DESIGN AND CONSTRUCTION; FOURIER ANALYSIS; HUMANS; MODELS, BIOLOGICAL; NORMAL DISTRIBUTION; PITCH PERCEPTION; SOUND SPECTROGRAPHY;

EID: 33747067701     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.2213570     Document Type: Article

References (10)

1. D. Lubman, http://www.ocasa.org/MayanPyramid.htm (site visited on 24-11-2005).
2. N. F. Declercq, J. Degrieck, R. Briers, and O. Leroy, "A theoretical study of special acoustic effects caused by the staircase of the EL Castillo pyramid at the Maya ruins of Chichen Itza in Mexico," J. Acoust. Soc. Am. 116, 3328-3335 (2004).
3. Exact, though cumbersome simulations, based on amplitude calculations by means of an extension of the Rayleigh theory of diffraction, produce better results, in agreement with experiments. The theoretical model reveals the amplitude distribution in a sonogram representation of the echo in front of the pyramid. From this amplitude distribution it is also possible to extract the "delay lines" of the echo [N. F. Declercq (private communication)].
4. F. A. Bilsen, "Repetition Pitch: Monaural interaction of a sound with the repetition of the same, but phase shifted, sound," Acustica 17, 295-300 (1966).
5. F. A. Bilsen, "Pitch of noise signals: Evidence for a central spectrum," J. Acoust. Soc. Am. 61, 150-161 (1977).
6. F. A. Bilsen and R. J. Ritsma, "Some parameters influencing the perceptibility of pitch," J. Acoust. Soc. Am. 47, 469-475 (1970).
7. W. M. Hartmann, Signals, Sound, and Sensation (AIP Press, New York, 1997), pp. 361-376.
8. T. D. Rossing, The Science of Sound (Addison-Wesley, New York, 1990), pp. 121-122.
9. A prediction of the complete sonogram instead of only spectral maxima (dotted lines) seems feasible partly by incorporating (running) cosinusoidal power spectra of pulse pairs multiplied with the spectrum of the hand-clap. However, also including reflection properties of the steps (amplitude and phase) is beyond the scope of the present approach.
10. C. Huygens, "En envoiant le probleme d'Alhazen en France," Correspondence No. 2840 (November 1693) printed in Oeuvres Complètes, Vol. 10, edited by Societý Hollandaise des Sciences (Nijhoff, Den Haag, 1950), pp.570-571.