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Re: Filtering out jet planes on a Mac (was flight path maps)

Subject: Re: Filtering out jet planes on a Mac (was flight path maps)
From: "Syd Curtis"
Date: Fri Apr 10, 2009 6:13 am ((PDT))
Hi Vicki,

        Am I right in assuming that Waves Q10 doesn't run on your present
Mac?

If so, can you remember enough of Waves to advise me on how to brick wall
filter out everything above 500 Hz for adding the quiet background.

BTW, somewhere I think I recall Norman filtering a lyrebird recording to get
rid of noise by brick-walling up to 700 Hz - which agrees nicely with your
advice of lyrebirds voices being above 700 Hz.

There just might be an exception with Albert's.  I seem to recall their
imitating beak-snapping.  My 1973 Tibro exotic pine plantation recordings
included a beautiful concert from a Grey Shrike-thrush.  (Would you like it
for A/Wings?  Or just to listen to yourself?)**  Spoilt in one part by
aircraft noise.  And noise from my parabola, I think.  I filtered it to 500
Hz, forgetting that it included beak-snapping - and that did appear to be
affected by the filtering.


Best regards

Syd

** Lasts 6 minutes, but you could use as little or much of it as you wanted,
if there was a bit of space to be filled on an A/W CD.

> From: vickipowys <>
> Reply-To: 
> Date: Fri, 10 Apr 2009 09:16:47 +1000
> To: 
> Subject: [Nature Recordists] Filtering out jet planes on a Mac (was flight
> path maps)
> 
> And thanks to Ed Slater who first suggested the
> brick wall filter method, and to someone on this list who recommended
> TrackPlug5 as a replacement for Waves Q10.







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