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Information transfer by outdoor loudspeakers of disaster administrative radio systems in cities, towns, and villages

, 2014
広美 五味
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Loudspeaker mounting frame, loudspeaker and cabinet comprising a loudspeaker

The Journal of the Acoustical Society of America, 2008
A loudspeaker mounting frame (1) for an electronic appliance has a central opening for receiving a loudspeaker membrane (24), and a plurality of through holes (11) surrounding said central opening for receiving fixing means (25). The through holes (11) are tapered so as to accommodate the fixing means (25) in varying orientations.
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Loudspeaker and stereophonic loudspeaker system

The Journal of the Acoustical Society of America, 1979
A loudspeaker has a rectangular casing providing a frontal wall in which are mounted a plurality of speaker mechanisms responding to differing frequency ranges. The high frequency speaker is oriented so that the axis of radiation is inclined upwardly and to one side of the normal to the front wall. In the preferred embodiments a lower frequency speaker,
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Horn loudspeaker and loudspeaker systems

The Journal of the Acoustical Society of America, 2004
A horn loudspeaker comprises: a horn (22) having a throat (26) and a mouth (30); a primary electro-acoustic driver (24) mounted at or adjacent the throat of the horn and directed generally along the horn; and at least one secondary electro-acoustic driver (32T, 32B, 32L, 32R) mounted part-way along the horn and directed generally across the horn.
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Loudspeaker

The Journal of the Acoustical Society of America, 2010
Daniel Bailey, Graeme Foy
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Loudspeaker

The Journal of the Acoustical Society of America, 2009
Gilles Milot, Francois Malbos
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Loudspeaker

The Journal of the Acoustical Society of America, 2007
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LOUDSPEAKER

The Journal of the Acoustical Society of America, 2013
R. Michael Datz, James J. Cronmiller
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Loudspeakers

The Journal of the Acoustical Society of America, 2003
Graham Bank, Julian Fordham
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Loudspeaker

The Journal of the Acoustical Society of America, 2003
Anthony John Andrews, John Newsham
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