[Audacity-nyquist] Statistical analysis (and hello)

[George J. <geo...@gm...>]

Hello,

I was just searching the archives to see if I could do some statistical
analysis of recordings.  I see Edgar recently published an A-weighting
filter and I've succesfully runi it as my first plug in.  (Sorry I've only
just joined the list so I only know you by the archives).

At work I'm using audacity to measure noise levels, so I wonder if this has
been done before.  I'd like to determine L10, L90 and Leq of a sample.  For
those of you whose jobs are more interesting than mine, L10 is the level
which is exceeded by 10% of all samples.

Has this been done by anyone?  Lisp is a foreign language to me so I'll need
some time to get used to it.

Thanks for any help,
George