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Re: Bat detector narration

Subject: Re: Bat detector narration
From: "Peter Shute" pshute2
Date: Wed Mar 30, 2016 2:49 am ((PDT))
Something I've noticed is that a mic wired to right channel only shows some=
 cross talk to the left channel in the M10's meters. I haven't checked to s=
ee if it'll be audible, but I suspect not. I didn't notice similar cross ta=
lk on the line in input. If this cross talk normal for the M10?=0D
=0D
Peter Shute=0D
=0D
Sent from my iPad=0D
=0D
On 29 Mar 2016, at 8:51 PM, Peter Shute <=
.org.au> [naturerecordists] <<nature=
>> wrote:=0D
=0D
=0D
=0D
It appears that I may not need anything this complicated. I just tried the =
detector plugged into Line In of the M10, and the microphone simultaneously=
 plugged into the mic jack, and it recorded from both. Is that the usual th=
ing with recorders that you can do that? So it appears all I have to do is =
wire up the microphone so it only feeds the right track, as the mono socket=
 I fitted to the bat detector is already feeding that only to the left.=0D
=0D
Peter Shute=0D
=0D
Sent from my iPad=0D
=0D
On 28 Mar 2016, at 4:25 AM, Dan Dugan <=
com><> [naturerecordists] <=
ups.com<><m("ya","naturerecordists");=">=
hoogroups.com>> wrote:=0D
=0D
=0D
=0D
I=92d suggest building an attenuating cable.=0D
=0D
33K on the input shunted to ground with 100 ohms will give you 50 dB of att=
enuation.=0D
=0D
-Dan=0D
=0D
> On Mar 26, 2016, at 11:26 PM, Peter Shute <pshute=
@nuw.org.au><> [naturerecordists] <naturerecordists=
@yahoogroups.com<><mailto:naturereco=
>> wrote:=0D
>=0D
> Thanks, Dan. The Shure A15LA is XLR to XLR. I need to connect 3.5mm to 3.=
5mm, so I'd need adapters too, making it quite bulky. Looking at the simple=
 circuit design on the side of the barrel, I might be better off just addin=
g a couple of resistors inside the bat detector. But maybe that type of att=
enuator would prevent it being able to drive its own speaker? If so, I gues=
s I could monitor via the recorder output instead.=0D
>=0D
> I saw a page suggesting 33k ohms in series, with 100 ohms in parallel wou=
ld reduce it by 50dB. Sound right?=0D
>=0D
> Peter Shute=0D
>=0D
> Sent from my iPhone=0D
>=0D
> On 27 Mar 2016, at 9:56 AM, Dan Dugan <=
n.com><><m("dandugan.com","dan");">> [naturerecordists]=
 <<>=
<><m("yahoogrou","naturerecordists");=">=
ps.com>> wrote:=0D
>=0D
>=0D
>=0D
> Direct boxes are generally intended to connect a high-impedance input lik=
e an electric guitar to a low-impedance balanced mic input.=0D
>=0D
> The best solution for line-to-mic is an XLR attenuator barrel designed fo=
r that purpose-meaning instead of 10 or 20 dB attenuation it has 40 or 50. =
Shure A15LA, 50 dB.=0D
>=0D
> -Dan=0D
>=0D
> On Mar 25, 2016, at 11:15 AM, <=
ii.rr.com><><m("hawaii.rr.com","benedict");">> [n=
aturerecordists] <<naturerecordists@=
yahoogroups.com><><mailto:naturereco=
>> wrote:=0D
>=0D
>=0D
>=0D
> It's new to me, too, so someone please point out where I'm wrong.=0D
>=0D
> You're looking for whats called a "direct box". It lets you plug a line l=
evel signal in one end, and get a mic level signal out the other.=0D
>=0D
> If you do a Google search on "line in to mic in converter" you get a bunc=
h of info on direct boxes, as well as schematics for building your own. The=
 schematics run the gamut from simple voltage dividers to transformers to o=
p-amp driven circuits. The direct boxes also run the gamut from XLR-to-TS, =
1/8"-to-1/8", single channel, dual channel, etc. So you can either build yo=
ur own or buy one off the shelf, regardless of what your setup is.=0D
>=0D
> Good news is these are common tools in the music industry, so if you have=
 a music store in town they're likely to have an assortment to choose from.=
 Even better, you can bring your bat gear (which you get extra points for i=
f you wear on your Bat Belt), and test it out.=0D
>=0D
> Cheers,=0D
>=0D
> Tom=0D
>=0D
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> ------------------------------------=0D
> Posted by: Peter Shute <<><mailt=
o:>>=0D
> ------------------------------------=0D
>=0D
> "While a picture is worth a thousand words, a=0D
> sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.=
=0D
>=0D
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> ------------------------------------=0D
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> Yahoo Groups Links=0D
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