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Thanks, I'd appreciate that!
"Marc" <jac### [at] wanadoo fr> wrote in message
news:467bade1@news.povray.org...
>
> 467b0e3c$1@news.povray.org...
>> When you try to record ambient sounds with a soise canselling mic, you
>> can try wraping your hands around it, leaving only the front showing.
>> That way, your hands will muffle the sound coming from the sides and the
>> rear. If it work OK, you can make a foam envelope or a casing with a
>> directional opening.
>>
> Not really sure it works : a noise cancelling mike is usually a pair of
> adjacent inverted phase cells, it takes close sources ( i.e. closer to the
> 'main' cell, so there is a difference) and cancels remote sources because
> the sound tends to be equal on both cells.
> I'm not sure either if you can muffle a thunder with your mere hands :-).
> A simple solution is to purchase a simple microphone, there are a lot of
> not expensive yet rather good electrets models.
> I may have some thunders recorded somewhere. I'll have a look at my
> backups.
>
> Marc
>
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