Hi Chris
Glad you enjoyed the recording.
The original recording was done 'flat' with no bass cut on the microphones.
Listening back to the recording I then used a 4 band equaliser and I first =
applied some filtering at the bottom end. From memory, as I am at work at t=
he moment, the shelf started at 90Hz and then gently sloped down from there=
. This to me helped remove the rumble of traffic and aircraft noise. Then l=
istening to it again I felt there was some lower mid band frequencies that =
were intruding. So I used a high 'Q' filter and adjusted the frequency unti=
l I got a result I was happy with and which to my ear 'helped' the recordin=
g.
I try and do as little as I can to any recording and if I do apply filterin=
g then I try to be as subtle as I can with it. But all the time I do compar=
isons with the original un-filtered recording and keep asking myself 'is wh=
at I am doing helping the recording or not?' As you can get carried away so=
easily and I like to keep comparing what I have done to the original.
Sometimes I find I am happy with the recording as is, and so I then leave i=
t alone.
I don't think you can really lose the traffic noise at it is quite wide-ban=
d, you are best trying to make it less obtrusive.
Phil
----- Original Message ----
From: Chris Hails <>
To:
Sent: Thursday, 2 August, 2007 7:52:29 PM
Subject: [Nature Recordists] Re: Wren Wilstone Reservoir
Phil, a bit late with my reply but wanted to say I enjoyed this mix,
the wren is at about the max level my system can sustain and I have
found that before. For a small bird they really produce the most
powerful piercing sounds (- have you ever tried slowing it down and
looking at what they really do ?). The photo on your page was a great
idea, I could really see the water lapping.
Your filtering worked well for me, and since I also live on several
flight paths I too suffer from aircraft noise, and sometime I would
love to know what "gentle filtering" means on this group. I use
something called Wavepad which gives me an adjustable equaliser which
can act as a filter. Some time ago Walter Knapp told us that several
passes with a "gentle hand" produced the best results, so I usually
do that, going for several passes with a 30% reduction below 1Khz (or
maybe 800Hz depending on the energy spectrum which I check first),
and can then back-up one step when it begins to sound too weird
(usually 2-3 steps is enough). Rob Danielson also said he keeps
anything below 40Hz in there, which I also follow to try and retain
some "mellowness" whilst removing the intrusion.
Any tips from anyone on the best way to remove traffic and aircraft
noise ?
Chris
--- In naturerecordists@ yahoogroups. com, "Phil Tyler"
<macmang4125@ ...> wrote:
>
> I recently made a recording at a local reservoir where the main
subject was a Wren, while
> nearby Mute Swans fed and grunted. There are also Coots, Moorhens,
Common Terns and
> Grey Herons amongst others in the background as well. I applied
some 'gentle' filtering to
> remove some of the unwanted sounds and to attempt to clean it up.
But in this part of
> England you are never very far away from a road or a flight path
sadly.
> I used a couple of K6/ME66's spaced on a stereo-bar and recorded it
onto a MZ-NH900
> mini-disc recorder.
> You can hear a 192Kb mp3 file of the recording here:
>
> http://www.astd59. dsl.pipex. com/naturewren. html
>
> I used Nvu to create the page and I have checked it using Safari on
a Mac and IE7 and Firefox
> 2.0.0.4 on a PC which all appear to work. Safari for the PC does
not seem to work correctly
> for this page.
>
> Phil
>
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