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<blockquote data-quote="mbraner" data-source="post: 730361" data-attributes="member: 48092"><p>Thanks Stan. Indeed the signal to noise ratio as I did it is not ideal, but it wasn't bad, relative to acoustic noises in the room etc. The mixer output was around -15 or -20 dB relative to "unity", still leaving another 40 dB or more relative to the mixer's internal noise. Also according to the level meter in the camera I could have fed it a few more dB.</p><p></p><p>I did look for a quick way to improvise an attenuator. I have a Direct Box to which I've added a 1/4" jack on the low-Z side which might have worked, also it has a built-in attenuator switch (-20 and -40 dB). The quality of the transformer in it is probably less than ideal though. It's also mono, although I ended up using a mono mix anyway in this case.</p><p></p><p>I was glad to learn something about the camera's mic jack's capability. While in live view I've measured that there *is* a DC bias (about 3V) in that jack coming out of the camera to run simple (and overpriced) condenser mics. But that does not seem to preclude feeding it the mixer output. If I were to build an adapter box with attenuation I'd also add capacitors for DC decoupling. The camera input is unbalanced so probably just "L" rather "H" resistor sets.</p></blockquote><p></p>
[QUOTE="mbraner, post: 730361, member: 48092"] Thanks Stan. Indeed the signal to noise ratio as I did it is not ideal, but it wasn't bad, relative to acoustic noises in the room etc. The mixer output was around -15 or -20 dB relative to "unity", still leaving another 40 dB or more relative to the mixer's internal noise. Also according to the level meter in the camera I could have fed it a few more dB. I did look for a quick way to improvise an attenuator. I have a Direct Box to which I've added a 1/4" jack on the low-Z side which might have worked, also it has a built-in attenuator switch (-20 and -40 dB). The quality of the transformer in it is probably less than ideal though. It's also mono, although I ended up using a mono mix anyway in this case. I was glad to learn something about the camera's mic jack's capability. While in live view I've measured that there *is* a DC bias (about 3V) in that jack coming out of the camera to run simple (and overpriced) condenser mics. But that does not seem to preclude feeding it the mixer output. If I were to build an adapter box with attenuation I'd also add capacitors for DC decoupling. The camera input is unbalanced so probably just "L" rather "H" resistor sets. [/QUOTE]
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