Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread todd eacrett

 
The Behringer DI-20 direct injection box works well and is also about
$25. Two channels, ground lift, several levels of attenuation. I use
them to get speaker level outputs from projectors to balanced mic
level inputs on a mixing board.  

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Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread Dave Tetzlaff
> Those things have transformers inside them... not very good transformers, but 
> transformers nonetheless.

Yeah, the quality varies. I've used some that worked fine. The thing is they're 
not THAT cheap, you still might need an attenuator, and the Rolls direct box is 
priced right at $25. I haven't tried it out myself, but someone on this list 
reported it does the trick. The only reasons I can see to go with something 
else is if you already have the isolation cable on hand, or you need to get the 
connection up in a hurry, faster than you can receive the Rolls direct box 
ordering online.

> I've had very good results merely plugging in a 1/4 to xlr unbalanced to 
> balanced adapter and plugging the other end directly into my Canon xh a1 
> camera.

This probably works because:
1. running the camera off the battery eliminates the possibility of a ground 
loop.
2. the XH-A1 pre-amp is forgiving

It's a good note though if you only need occasional audio recording, as a 
simple cable with the camera running on battery power is cheap and easy enough 
to be worth a try if straight capture is all you need. 

An XH-A1 will also serve as DIY telecine with a conventional 3 blade projector 
if you use the 24F setting (which can be tweaked for precise sync in the menus 
to match minor differences between projector speeds and exact 24). So no need 
for a 5-blade. [I have done this successfully and with no problems using 
exactly an XH-A1 and a Pageant, so it's not just 'should work in concept'.] 
Just don't tell Jeff you're going DIY, and/or promise that if the footage is 
really valuable you'll get it scanned with a Kinetta. ;-) 

HOWEVER, if you need/want to put any AC powered audio component in the chain, 
you'll likely have a ground loop problem (not that it hurts to check if you're 
not running valuable film in the projector). And even on batteries, your video 
camera's pre-amp may not be as chill with the impedance mis-match as Sean's 
XH-A1. 
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Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread Sean Weitzel
I modified my pageant to use a 1/4" jack. I've had very good results merely
plugging in a 1/4 to xlr unbalanced to balanced adapter and plugging the
other end directly into my Canon xh a1 camera. From there I just set the
audio gain on the camera to about 1/3 and adjust the volume knob on the
pageant until it sounds good and the vu on the camera is just under
clipping. Here's an example I put on YouTube a while back:
https://youtu.be/xF-0sYsLP10
On Mar 10, 2016 7:22 AM, "Scott Dorsey"  wrote:

> > Alternatively, for the ground loop isolation, you can use the RCA
> isolation cables they sell at car stereo shops.
>
> Those things have transformers inside them... not very good transformers,
> but
> transformers nonetheless.
>
> I'd use a decent DI box personally, if there was no way to bypass the power
> amp.
> --scott
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Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread Scott Dorsey
> Alternatively, for the ground loop isolation, you can use the RCA isolation 
> cables they sell at car stereo shops.

Those things have transformers inside them... not very good transformers, but
transformers nonetheless.

I'd use a decent DI box personally, if there was no way to bypass the power
amp.
--scott
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Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread Dave Tetzlaff
I don't have the OP, only Scott's reply, so I'm not sure what setup is desired, 
But, in general, getting audio from a Pageant into a line-level input on 
recording gear is more than just connecting cables: you'll want an in-line 
isolation transformer to avoid ground loop hum, and a simple attenuator 
resistor circuit to match the level and impedance. A Rolls audio DB25 direct 
box should do the trick on both counts, and they're pretty cheap, about $25 
IIRC. You'd need the cable Scott describes to connect the Pageant to the box.  

Alternatively, for the ground loop isolation, you can use the RCA isolation 
cables they sell at car stereo shops. You just need an adaptor for the end that 
goes to the Pageant, or better yet whack off the RCA plug and attach the plug 
that fits the projector. You might be able to get by without the attenuator, or 
find an attenuator cable (not a common item, unfortunately), or get someone 
handy to make one (just 3 resistors, schematics on the web…). 


> you could make a cable with a .206" plug on one and end a 1/4" phone on the 
> other and plug the thing into a DI box.
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Re: [Frameworks] recording audio from a Pageant

2016-03-10 Thread Scott Dorsey
That is a 0.206" plug.  Switchcraft part S250.

That said, you'll find that getting a tech to install a direct output from
the phototube that bypasses the power amplifier will have better sound quality.
But you could make a cable with a .206" plug on one and end a 1/4" phone on
the other and plug the thing into a DI box.
--scott
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[Frameworks] recording audio from a Pageant

2016-03-10 Thread ++ fereshteh ++
I want to run an audio cable out from a 16mm Kodak Pageant projector in order 
to record the sound track.
The output (typically goes to the speaker that accompanies the projector) is 
almost, but not quite 1/4"
Has anyone done this before and how did you manage to find an audio jack that 
would work?Thank you!Fereshteh___
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