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Re: Very quiet recordings

Subject: Re: Very quiet recordings
From: "404" quies_still
Date: Tue Jun 5, 2012 6:48 am ((PDT))
Thanks for this, Raimund. Fascinating stuff!

On 05 Jun 2012, at 19:39, Raimund wrote:

> <But every now and then there's moments where the wind lies down and the
> flies stay away and it's silent. Not quiet. But silent. I'm sure that anyone 
> who's ever driven into the Australian outback or desert know what I'm talking 
> about. I can highly recommend it>
> Peter,
> I think I know what you are talking about. I experienced that stunning 
> silence several times shortly after sunset while camping in the Sonoran 
> Desert (Arizona). 
> There is a simple explanation for that kind of silence: A strong temperature 
> gradient in the air above the ground creates a sonic shadow region for each 
> sound source (the ground is still hot, but the air is getting cooler at 
> night). See So, I 
> think there is still some noise around, but it just cannot be heard due to 
> these refraction effects.
> Regards,
> Raimund

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