--- In Derek Holzer <>
wrote:
>
> I've recently been asked to help with a project where 4 channels of
> microphones will be capturing polar ambiance for 30 straight days.
DPA have some interesting information about using microphones at low
temperatures. Their 4006 omnis have been used to record Arctic sounds
at -45 degrees C. You can read about it here:
http://www.dpamicrophones.com/page.php?PID=3D30
Then scroll down to the bottom of the page and click on the link
titled "Glacionauts".
My first thoughts on this align with Micheal Oates' - will any form
of heating be required? I immediately pictured a recording 'station',
rather like a weather station or similar, with a bank of appropriate
low temperature batteries and some Peltier devices or similar to keep
things warm enough over 30 days to prevent ice forming, and perhaps a
solar power or wind turbine to prolong the battery life. (The turbine
might be more effective at generating electricity, but would probably
be noisy.)
It sounds like an amazing project. Will it be manned or unmanned?
- Greg Simmons
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