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Old July 7th, 2005, 04:24 PM   #1
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Mini-to-XLR cable

I need a mini male plug to female XLR cable to connect a mono XLR mic (the pd150 native mic, ECM-VM1) to a TRV33 camera. Would this Hosa cable work?

http://www.bhphotovideo.com/bnh/cont...ughType=search

Any other (better) options? Is there anything else I should aware of when it comes to connecting a mono mic to stereo mini jack?

Thank you.
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Old July 7th, 2005, 05:19 PM   #2
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Yes, that's the one.

It would be good to check the specifications of the TRV33's mic jack to see how strong a signal it expects compared to the -62 dB jack that the mic normally serves.
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Old July 7th, 2005, 06:55 PM   #3
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How is the microphone going to be powered? It probably needs battery power, since the camera won't put out phantom power (and the cable/adapter may have a capacitor to block the "consumer mic plug-in power").


The different levels may or may not be a problem. I really wouldn't know.

2- The micrphone will also need a shockmount? The camera body can transmit motor vibrations, and the camera itself may be a little noisy.
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Old July 7th, 2005, 08:27 PM   #4
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Quote:
Originally Posted by Glenn Chan
How is the microphone going to be powered? ... a capacitor to block the "consumer mic plug-in power").
Glenn, that's a good question. I just assumed that the mic would be powered by the camera. Is there a cable/adaptor that would allow the camera to power the mic?
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Old July 7th, 2005, 10:38 PM   #5
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There are some units available that will provide phantom power. This has been discussed before, a search may bring it up.

2- It might just be easier to get a Rode Videomic? It's got everything basically...
shockmount, hot shoe for mounting, windscreen, mini-plug connector.
It needs a battery I believe.

3- There's an off-chance that the mic jack might provide enough power for the microphone to work??
I don't know enough about this to tell you whether or not it'll fly.

EDIT: My guess is that it won't work.
A proper XLR-mini adapter cable (for camcorders) should block DC current (i.e. the power flowing through the cable to power consumer-type microphones) so there's no hum/buzz in your audio.
Even if that wasn't there, the voltage being sent (on my Panasonic GS70 consumer cam) is only 2.5V, which is below 11V-48V needed for phantom power.

Last edited by Glenn Chan; July 7th, 2005 at 10:54 PM.
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Old July 8th, 2005, 12:19 AM   #6
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I don't believe the Hosa has a blocking capacitor, Glenn, but you're right about the voltage inadequacy. I checked the TRV38 manual. 2.5-3V also.
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Old July 8th, 2005, 08:49 AM   #7
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Another option is to get a device along the lines of a Beachtek XLR adapter. Some of those models provide phantom power, limiters, and preamps.
You'd still need the shock mount though.

Quote:
I don't believe the Hosa has a blocking capacitor
For some reason I always thought it did? Anyways, definitely worth double-checking.
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