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Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954)
[ACTIVE]

Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper describes a two-way loudspeaker system having an extended frequency range and exceptionally uniform distribution. These characteristics, which effectively meet the requirements for the presentation of stereophonic sound in motion-picture theaters, are obtained by the use of an acoustic lens. Spherical and elliptical lens elements accommodate the distribution pattern to variously shaped auditoria. Design features of the low-frequency horn provide a clean response which is essentially free from resonance.
Publication Date
1954-09-01
DOI
10.5594/J04853
Link
https://doi.org/10.5594/J04853
Author(s)
John G. Frayne, B.N. Locanthi
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J04853.json

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John G. Frayne and B.N. Locanthi; Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J04853
Snippet:
John G. Frayne and B.N. Locanthi; Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J04853

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John G. Frayne and B.N. Locanthi; Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954. Available at https://doi.org/10.5594/J04853
Snippet:
<span class="citation">John G. Frayne and B.N. Locanthi; <cite>Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954. Available at <a href="https://doi.org/10.5594/J04853" target="_blank" rel="noopener">https://doi.org/10.5594/J04853</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
John G. Frayne and B.N. Locanthi; Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954
doi: 10.5594/J04853
url: https://doi.org/10.5594/J04853
Snippet:
<li>
John G. Frayne and B.N. Locanthi; <cite id="bib-10-5594-j04853">Theater Loudspeaker System Incorporating an Acoustic-Lens Radiator</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 63, Issue: 3, September 1954); SMPTE, 1954
<span class="doi">10.5594/J04853</span>
</li>