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Loudspeaker recommendation

Subject: Loudspeaker recommendation
From: "geoffjcarey" geoffjcarey
Date: Wed Jan 6, 2010 12:28 am ((PST))
This is somewhat tangential in that it relates to the broadcast of natural 
sounds, rather than the recording, but not, I hope, completely unrelated.

The issue I have relates to the use of natural distress calls of birds as a 
measure to deter birds from airports, thus reducing bird strike hazard. It 
appears that all commercially-available devices providing distress calls for 
bird deterrence do not contain species suitable for airports I deal with here 
in Asia, nor do they allow self-made recordings to be added to the library of 
sounds available for playback.

In addition, typical recorders do not have sufficiently powerful built-in 
speakers. Consequently, I am looking for a portable, amplifier/loudspeaker 
device that I can attach to a recorder/playback device, which can be used to 
broadcast distress calls from birds as a measure to reduce bird strike hazard 
at airports. 

Can anybody recommend a portable device suitable for broadcasting sounds loud 
enough to carry 200-300m or so, and one that can be plugged into a digital 
recorder? Or even one that has its own memory card?

Many thanks,

Geoff Carey

"While a picture is worth a thousand words, a 
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause

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