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Re: Bat detector narration

Subject: Re: Bat detector narration
From: "Peter Shute" pshute2
Date: Thu Mar 31, 2016 10:32 pm ((PDT))
But I assume they're either both on or both off. Could it damage anything t=
o have PIP on the channel with the attenuator? I forget what load a microph=
one normally is, but I thought it was way higher than 100 ohms.=0D
=0D
Sent from my iPhone=0D
=0D
On 1 Apr 2016, at 2:52 PM, Dan Dugan <=
om> [naturerecordists] <<naturerecor=
>> wrote:=0D
=0D
=0D
=0D
Each channel has its own PIP powering.=0D
=0D
-Dan=0D
=0D
> On Mar 31, 2016, at 2:01 PM, Peter Shute <pshute@=
nuw.org.au> [naturerecordists] <<nat=
>> wrote:=0D
>=0D
> Just had a thought- is it safe to use PiP now that the attenuator's built=
 into the cable? I can't use the mic without it, but now the attenuator and=
 bat detector are on the other channel. So there's a 100 ohm resistor acros=
s one channel. Is it a problem?=0D
>=0D
> Peter Shute=0D
>=0D
> Sent from my iPad=0D
>=0D
> On 31 Mar 2016, at 6:09 PM, Peter Shute <=
uw.org.au><> [naturerecordists] <=
ahoogroups.com<><naturerecord=
>> wrote:=0D
>=0D
>=0D
>=0D
> Yes, a very dumb mistake. I plugged them both in on the off chance it mig=
ht work. I tapped the mic, and saw the level meters move. I tapped the dete=
ctor, and saw them move again. But of course they were just registering the=
 sound of the detector's *speaker* via the microphone!=0D
>=0D
> I've just finished the attenuating cable, and it's all working nicely now=
 via the mic jack. Thanks for your help, everybody.=0D
>=0D
> Peter Shute=0D
>=0D
> Sent from my iPad=0D
>=0D
> On 31 Mar 2016, at 7:28 AM, Dan Dugan <=
n.com><><m("dandugan.com","dan");">> [naturerecordists]=
 <<>=
<><m("yahoogrou","naturerecordists");=">=
ps.com>> wrote:=0D
>=0D
>=0D
>=0D
> That=92s normal for portable recorders. I was scratching my head when you=
 reported mixing=85=0D
>=0D
> -Dan=0D
>=0D
>> On Mar 30, 2016, at 3:28 AM, Peter Shute <pshute=
@nuw.org.au><><m("nuw.org.au","pshute");">> [naturerec=
ordists] <<=
ups.com><><m("y","naturerecordists");=">=
ahoogroups.com>> wrote:=0D
>>=0D
>> I think it's time to give up on this idea of simultaneously recording fr=
om Mic and Line In sockets. I was mistaken, and it appears the Mic socket t=
akes precedence.=0D
>>=0D
>> Peter Shute=0D
>>=0D
>> Sent from my iPad=0D
>>=0D
>> On 30 Mar 2016, at 8:49 PM, Peter Shute <pshute@=
nuw.org.au><><m("nuw.org.au","pshute");">><pshu=
> [naturerecordists] <<mailto:=
><><=
><m("yahoogroup","naturerecordists");=">=
s.com>> wrote:=0D
>>=0D
>>=0D
>>=0D
>> Something I've noticed is that a mic wired to right channel only shows s=
ome cross talk to the left channel in the M10's meters. I haven't checked t=
o see if it'll be audible, but I suspect not. I didn't notice similar cross=
 talk 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 <pshute@=
nuw.org.au><><m("nuw.org.au","pshute");">><pshu=
><> [naturerecordists] <naturerecordis=
<><naturere=
><><n=
><>> =
wrote:=0D
>>=0D
>>=0D
>>=0D
>> It appears that I may not need anything this complicated. I just tried t=
he detector plugged into Line In of the M10, and the microphone simultaneou=
sly plugged into the mic jack, and it recorded from both. Is that the usual=
 thing 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 soc=
ket 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 <=
an.com><><m("dandugan.com","dan");">><m("dandug","dan");=">=
an.com><><m("dandugan.com","dan");">> [naturerecordists=
] <<=
><><m("yahoogro","naturerecordists");=">=
ups.com><><m("y","naturerecordists");=">=
ahoogroups.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 =
attenuation.=0D
>>=0D
>> -Dan=0D
>>=0D
>>> On Mar 26, 2016, at 11:26 PM, Peter Shute <pshu=
><><m("nuw.org.au","pshute");">><p=
><><m("nuw.org.au","pshute");">> [natu=
rerecordists] <<=
oogroups.com><><naturerecordi=
><><nature=
><>> wrote=
:=0D
>>>=0D
>>> Thanks, Dan. The Shure A15LA is XLR to XLR. I need to connect 3.5mm to =
Message: 3.
Subject: 5mm, so I'd need adapters too, making it quite bulky. Looking at the 
simp=
le circuit design on the side of the barrel, I might be better off just add=
ing a couple of resistors inside the bat detector. But maybe that type of a=
ttenuator would prevent it being able to drive its own speaker? If so, I gu=
ess I could monitor via the recorder output instead.=0D
>>>=0D
>>> I saw a page suggesting 33k ohms in series, with 100 ohms in parallel w=
ould 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 <=
gan.com><><m("dandugan.com","dan");">><m("dandu","dan");=">=
gan.com><><m("dandugan.com","dan");">><m("dandu","dan");=">=
gan.com> [naturerecordists] <<nature=
><><mailto=
:><>=
<><m("yahoogrou","naturerecordists");=">=
ps.com><>> wrote:=0D
>>>=0D
>>>=0D
>>>=0D
>>> Direct boxes are generally intended to connect a high-impedance input l=
ike 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 =
for 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, <=
waii.rr.com><><m("hawaii.rr.com","benedict");">><=
><m("hawaii.rr.com","benedict");">><benedi=
><> [naturerecordists] <nature=
<><mailto:=
><><=
><m("yahoogroup","naturerecordists");=">=
s.com><><m("yah","naturerecordists");=">=
oogroups.com>> 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=
 level 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 bu=
nch of info on direct boxes, as well as schematics for building your own. T=
he schematics 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.=0D
>>>=0D
>>> Good news is these are common tools in the music industry, so if you ha=
ve a music store in town they're likely to have an assortment to choose fro=
m. Even better, you can bring your bat gear (which you get extra points for=
 if you wear on your Bat Belt), and test it out.=0D
>>>=0D
>>> Cheers,=0D
>>>=0D
>>> Tom=0D
>>>=0D
>>>=0D
>>>=0D
>>>=0D
>>>=0D
>>>=0D
>>>=0D
>>> ------------------------------------=0D
>>> Posted by: Peter Shute <<><mai=
lto:><><m("nuw.org.au","pshute");">><=
><m("nuw.org.au","pshute");">>>=0D
>>> ------------------------------------=0D
>>>=0D
>>> "While a picture is worth a thousand words, a=0D
>>> sound is worth a thousand pictures." R. Murray Schafer via Bernie Kraus=
e.=0D
>>>=0D
>>>=0D
>>> ------------------------------------=0D
>>>=0D
>>> Yahoo Groups Links=0D
>>>=0D
>>>=0D
>>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>>=0D
>> ------------------------------------=0D
>> Posted by: Peter Shute <<><mail=
to:><>>=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
>>=0D
>> ------------------------------------=0D
>>=0D
>> Yahoo Groups Links=0D
>>=0D
>>=0D
>>=0D
>=0D
>=0D
>=0D
>=0D
>=0D
>=0D
>=0D
> ------------------------------------=0D
> Posted by: Peter Shute <<>>=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
>=0D
> ------------------------------------=0D
>=0D
> Yahoo Groups Links=0D
>=0D
>=0D
>=0D
=0D
=0D
=0D








"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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