Personal response - I am on Dan's team doing the Muir Woods recording
project. I find that my own (intuitive) calibration works fine for my
own uses - and coordinates well with Dan's rigorous scientific method:
Speak normally while wearing the mic vest (when using it that way) or
at arm's length from the mic array. Calibrate it so that the levels
don't overload, say about -6. Then when you play it back, set the
speaking slate at comfortable listening level, and voila, instant
relative calibration! If you encounter louder sounds in the field, of
course you will need to reset it to avoid overload...
Just a suggestion. If there is scientific need for accurate
calibration, Dan's method is good. The fifteen minutes times work very
well indeed for this kind of survey - longer times would be appropriate
for more natural environments. But national parks have their own set of
timings - sitting in one place while the tourists walk by, it seems a
very long time indeed... In nature without humans it is different.
Lou
Lou Judson =95 Intuitive Audio
415-883-2689
On Aug 29, 2005, at 8:27 AM, Rob Danielson wrote:
> wouldn't it be very tough to set up relevant field calibration? For
> record level instruction, how about something like "...set at -5dB
> during a loud, distant event. If a louder event comes, re-adjust the
> record level for -5dB (or -10dB, but this is often not marked) and
> record for another 30 minutes"
________________________________________________________________________
________________________________________________________________________
|