> According to his website, Gordon Hempton uses such a process when
> preparing his binaural 'sound portraits'. He measures the SPL at the
> mic position during recording, and matches it at the monitoring
> position in his studio when preparing the recordings for release.
> The idea has always made a lot of sense to me, but I'm too lazy to
> carry an SPL meter...
>
> The SPL Meter widget for iPhones might make it easier, however.
I highly recommend those iPhone apps by Faber Acoustical. You don't
have to write the SPL number down, you can take a screenshot. I take a
screenshot of the spectrum analyzer, too, to document the ambience.
I report that data in my report that accompanies the raw sound files
to the park and California Library of Natural Sounds. When I'm doing
post-production for pleasure or education, however, I ignore original
SPLs and mix for what sounds nice when played at typical levels.
-Dan Dugan
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