Are noise issues with the H2 usefully improved by a 9V battery? Using a number
of these
compact inexpensive (if very lightly built) units for short term passive
multisite sampling of
bird or mammal vocalizations came up in conversation. It would be easy to equip
them with
a larger battery pack and only a little more work to replace microphones if
something else
with fairly low cost would be better.
Bill R.
"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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