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Converting line level to mic level
Hi,
I have a CANON XH-A1 camera which I am using for shooting football. I’m being sent a line level signal from the radio booth. At the same time, I also have a phantom powered crowd microphone that I am needing to use.The XH-A1 only has 1 line/mic option and not separate options for each channel. I need something that will either convert that line level to a mic level (otherwise it is distorted) or something that can bring my phantom powered microphone to line level.
I’m open to purchase or creating such a contraption, but I would rather make it if I can.
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5 Replies
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What you need is a 40db pad. It’s available as an inline plug in. The ATT448 from Markertek.com is a 3 step unit with attenuation at 20/30/40db for $15.59. You can’t build one that durable for that price.
Eric
“I push the RECORD button and hope for the best”
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Eric is right -40 db pad.
PeterPost Production Dubbing Mixer
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Yea I got an adapter from B&H. Is there a diagram on how to build my own? I would like to make a few of these.
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Here’s a simple 20db pad diagram:
XLR-M pin 1……………………….XLR-F pin 1
XLR-M pin 2….(470 ohm resistor)……XLR-F pin 2
XLR-M pin 3….(470 ohm resistor)……XLR-F pin 3
A 100 ohm resistor between pins 2 & 3 will give you 20db of attenuation. For more attenuation lower the value of the 100 ohm resistor, a 50 ohm should be about right.
Eric
“I push the RECORD button and hope for the best”
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Make sure that the balanced feed you’re being sent from the radio booth has its Pin 1 lifted, or the phantom power coming from your camera’s inputs could fry the output circuitry in the mixer.
Wolf
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