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Re: Brain Filters

Subject: Re: Brain Filters
From: Klas Strandberg <>
Date: Thu, 23 Oct 2003 13:47:01 +0200
Hi Syd!

If you think they would be interested, please go ahead.

I was active trying to get involved in the British companionship, several
years ago. I'm a big fan of Richard Margoushis and once visited his house.
Met his wife and had some tea and cookis. Being an editor and narrator, he
beats them all. I still listen to his tapes just for the voice and talent to
tell a story.

Klas.
 

At 09:51 2003-10-23 +1000, you wrote:
>Hello Klas,
>
>            I found your message (quoted below) most interesting and
>thought-provoking.  Like every nature recordist I was surprised at my first
>recording attempt to hear all the sounds that my brain had been filtering
>out, and I find it fascinating that such noise seems more intrusive in a
>mono recording than in a stereo one.  Seems logical though, now that you
>make me to think about it.
>
>To date, I've mostly looked on background noise as something to avoid, and
>if you can't avoid it, try to filter it out later.  But you make an
>important point that it is part of a particular scene, and there are times
>when it should be faithfully recorded.
>
>"A Robin" and "a Robin in a Trafalgar Square traffic jam" are both
>legitimate recordings.  I must henceforth keep that fundamental truth firmly
>in mind.  (Too much to hope for, I guess, that there should still be a
>nightingale singing in Berkley Square.)
>
>Klas, you are probably aware that among the members of the British Wildlife
>Sound Recording Society there are a number of fans of Telinga equipment.  (I
>am one.)  May I have your permission to suggest to the Society's editor,
>that he include your message in the next issue of the Society's journal?
>And likewise, for our local Australian Wildlife Sound Recording Group's
>journal.
>
>Thanks for your posting.
>
>Syd Curtis in Australia
>
>PS And thanks Greg Winterflood, for provoking Klas into sharing his wisdom
>with us.
>
>> From: Klas Strandberg <>
>> Reply-To: 
>> Date: Wed, 22 Oct 2003 13:20:50 +0200
>> To: 
>> Subject: Re: [Nature Recordists] Brain Filters and the price of MDs
>> 
>> In 1982 I made an experiment:
>> 
>> I recorded a Redwing in AB stereo:
>> In the background you could easily hear traffic sounds from the city and
>> airplanes from the airport.
>> 
>> When people were presented the recording in stereo, with headphones, they
>> all looked happy, smiling, saying things like "it is so natural, how can you
>> do this?"
>> Nobody commented the traffic sounds.
>> 
>> When presented the recording in mono (one of the omnis) people didn't look
>> as happy, no smile, but they said things like "it is very good quality".
>> 
>> When the recording was low frequency filtered, they all said things like "it
>> is a pity that one can hear so much traffic noise.
>> 
>> So, in mono, when filtered, people took more notice of the traffic. I
>> concluded that mono doesn't trigger the "brain filters" good enough,
>> especially not when you have manipulated the mono sound.
>> 
>> In 1995, I made a stereo recording (Telinga PRO5 + stere DATmic) of a Robin
>> sitting on a car antenna at Trafalgar Square, in the middle of London
>> afternoon traffic.
>
>> That is not a recording of a Robin, and should not be judged as a "very
>> noisy recording of a Robin." It is a recording of "a Robin at Trafalgar
>> Square traffic jam," and the traffic sounds are not noise, but part of the
>> recording. 
>> 
>> Klas.
>
>
>
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>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email: 
       




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