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Re: single microphone on two channels with different level

Subject: Re: single microphone on two channels with different level
From: animalsounds
Date: Sun Jun 5, 2016 12:52 am ((PDT))
=0D
 Hi Gianni and Paul,=0D
 =0D
 As far as I can see, there is no simple way to attenuate the output of a P=
IP microphone. The problem is that the additional voltage divider would blo=
ck the (3V) PIP voltage provided by the recorder. So, if you wish to insert=
 an attenuator between the microphone and the recorder, you also had to bui=
ld a separate PIP voltage supply and decouple the attenuator from the micro=
phone output using a capacitor.=0D
 Another way to take advantage of the second unused microphone input might =
be to just connect the two Inputs. That way the EIN of the combined inputs =
should be reduced by 3 dB if you mixed the two stereo channels into a mono =
channel during post processing. I'm however not sure whether this would pro=
vide any advantage in conjunction with your external microphone because the=
 EIN of the (individual) microphone inputs is already quite low (-122 dBu (=
A)) compared to the inherent noise floor of the microphone (see http://www.=
avisoft.com/recordertests.htm).=0D
 =0D
 Regards,=0D
 =0D
 Raimund=0D





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