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-   Canon VIXIA Series AVCHD and HDV Camcorders (https://www.dvinfo.net/forum/canon-vixia-series-avchd-hdv-camcorders/)
-   -   hv20 - only phantom power mics? (https://www.dvinfo.net/forum/canon-vixia-series-avchd-hdv-camcorders/110085-hv20-only-phantom-power-mics.html)

David Delaney December 12th, 2007 04:46 PM

hv20 - only phantom power mics?
 
I have been trying to get a computer mic (1/8 stereo) and another mic (similar) to work with my HV20, but it doesn't seem to work. BUT when I use my XLR mic (with battery power), it works fine. I find this a bit strange when I have two older model camcorders that ALL the mics work fine with...

Is the HV20 only capable of external mic with phantom power? Is there a switch or something that I missed?

Thanks

Chris Barcellos December 12th, 2007 05:07 PM

Good question. I wonder about that too. I just realized all my mini plug mics do have battery power, and I have never tried a computer mic I have on the HV20, or any other camera with a miniplug. So that raises the question as to whether the computer supplies phantom power through the miniplug for computer mics..

David Delaney December 12th, 2007 05:24 PM

Would you mind checking for me Chris? Thanks

Chris Barcellos December 12th, 2007 06:00 PM

I'll check it out this evening..

David Delaney December 15th, 2007 09:17 AM

Chris, did you have a chance to test it yet?

Don Palomaki December 15th, 2007 01:18 PM

Some computer mics require external power provided over the audio cord by the computer audio card. (And some camcorders do provide this power, but Canons do not). The HV-20 does NOT provide power for an external mic. See page 62 of the (NTSC) manual.

BTW: phantom power is NOT internal power provided by a battery in a mic. It is usually ~48 VDC provided by a preamp to a microphone using a balanced connection (usually XLR connectors). Check the microphone in question specification to determine if it needs or can use phantom power.

Computer-furnished power is not "phantom" power, it usually is a DC bais, typically about 5 volts, on the "hot" audio lead from the mic.


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