Thanks, Dan. The Shure A15LA is XLR to XLR. I need to connect 3.5mm to 3.5m=
m, so I'd need adapters too, making it quite bulky. Looking at the simple c=
ircuit design on the side of the barrel, I might be better off just adding =
a couple of resistors inside the bat detector. But maybe that type of atten=
uator would prevent it being able to drive its own speaker? If so, I guess =
I could monitor via the recorder output instead.
I saw a page suggesting 33k ohms in series, with 100 ohms in parallel would=
reduce it by 50dB. Sound right?
Peter Shute
Sent from my iPhone
On 27 Mar 2016, at 9:56 AM, Dan Dugan <=
com> [naturerecordists] <<naturereco=
>> wrote:
Direct boxes are generally intended to connect a high-impedance input like =
an electric guitar to a low-impedance balanced mic input.
The best solution for line-to-mic is an XLR attenuator barrel designed for =
that purpose-meaning instead of 10 or 20 dB attenuation it has 40 or 50. Sh=
ure A15LA, 50 dB.
-Dan
On Mar 25, 2016, at 11:15 AM, <=
.rr.com> [naturerecordists] <<nature=
>> wrote:
It's new to me, too, so someone please point out where I'm wrong.
You're looking for whats called a "direct box". It lets you plug a line lev=
el signal in one end, and get a mic level signal out the other.
If you do a Google search on "line in to mic in converter" you get a bunch =
of info on direct boxes, as well as schematics for building your own. The s=
chematics run the gamut from simple voltage dividers to transformers to op-=
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 your=
own or buy one off the shelf, regardless of what your setup is.
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. E=
ven better, you can bring your bat gear (which you get extra points for if =
you wear on your Bat Belt), and test it out.
Cheers,
Tom
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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