Rebel T2i + Audio Technica AT875R at DVinfo.net

Reid Hildebrand · June 6th, 2011, 03:47 PM

Hi all,

I am very new to the audio component of filmmaking. Today, I am trying to use an Audio Technica AT875R to capture audio by plugging it directly into the T2i's mic port (I don't have the time or funds to buy any adapters). However, the mic is not picking up any sound at all, when hooked up to the camera or simply when plugged into my computer. If I thought correctly, phantom power should come from the computer into the mic, but this is not happening. Is there something I'm missing? This must be a mic problem, but I don't know how to fix it.

Thanks!
Reid

Pedanes Bol · June 6th, 2011, 05:02 PM

As far as I know neither T2i nor the computer microphone inputs have phantom power. Have you checked the specifications of your camera and the computer?

Gerry Gallegos · June 6th, 2011, 07:04 PM

Well you are correct and not.

The AT 875r requires a considerable higher voltage phantom power than the T2i provides.
the 875 wants to see 11v to 52v phantom power to operate, the camera provides a very small voltage maybe less than 2 volt which is enough for some low end electrets.

Basically the two are not immediately compatible with out either a pre-amp that supplies phantom or phantom power adapter. either way they arent going to work by themselves.

Do yourself a favor and do a search because this is very well covered subject over the last 6 months or so, depending on the type of filming you do you may be able to achieve passable audio for an interview or something like that where perfection is not critical (and thi can only be achieved with using the ML hack and a mic pre or a wireless mic which output a hotter signal), however if your aspirations are to do narative films, dont waste your time trying to record direct to camera and just pick up a decent recorder with XLR inputs with phantom or a field mixer and a recorder with line ins.

hope this helps

good luck

Dan Brockett · June 20th, 2011, 05:12 PM

Reid:

I am the biggest fan of the AudioTechnica AT-875R, it is a superb mic for the money. Unfortunately it is a pro mic though and you are not a pro in a pro gear situation (no phantom, no XLR input).

Your best bet would be to sell the AT-875R and replace it with a RØDE Videomic. Sounds great and has a 3.5mm stereo connection that will plug right into your T2i. You will need to use the free Magic Lantern firmware to turn off the AGC in your T2i. Chad Johnson posted on this same board with some helpful video samples of what this will sound like. http://www.dvinfo.net/forum/all-thin...lp-needed.html

I have reviewed the RØDE for some magazines, it is a great little mic.

Dan

June 6th, 2011, 03:47 PM	#1
Reid Hildebrand Tourist Join Date: Jun 2010 Location: Charlottesville, USA Posts: 2	Rebel T2i + Audio Technica AT875R Hi all, I am very new to the audio component of filmmaking. Today, I am trying to use an Audio Technica AT875R to capture audio by plugging it directly into the T2i's mic port (I don't have the time or funds to buy any adapters). However, the mic is not picking up any sound at all, when hooked up to the camera or simply when plugged into my computer. If I thought correctly, phantom power should come from the computer into the mic, but this is not happening. Is there something I'm missing? This must be a mic problem, but I don't know how to fix it. Thanks! Reid

June 6th, 2011, 05:02 PM	#2
Pedanes Bol Regular Crew Join Date: May 2007 Location: Boston MA Posts: 167	Re: Rebel T2i + Audio Technica AT875R As far as I know neither T2i nor the computer microphone inputs have phantom power. Have you checked the specifications of your camera and the computer?

June 6th, 2011, 07:04 PM	#3
Gerry Gallegos Major Player Join Date: Oct 2007 Location: Houston, Texas Posts: 262	Re: Rebel T2i + Audio Technica AT875R Well you are correct and not. The AT 875r requires a considerable higher voltage phantom power than the T2i provides. the 875 wants to see 11v to 52v phantom power to operate, the camera provides a very small voltage maybe less than 2 volt which is enough for some low end electrets. Basically the two are not immediately compatible with out either a pre-amp that supplies phantom or phantom power adapter. either way they arent going to work by themselves. Do yourself a favor and do a search because this is very well covered subject over the last 6 months or so, depending on the type of filming you do you may be able to achieve passable audio for an interview or something like that where perfection is not critical (and thi can only be achieved with using the ML hack and a mic pre or a wireless mic which output a hotter signal), however if your aspirations are to do narative films, dont waste your time trying to record direct to camera and just pick up a decent recorder with XLR inputs with phantom or a field mixer and a recorder with line ins. hope this helps good luck

June 20th, 2011, 05:12 PM	#4
Dan Brockett Inner Circle Join Date: Feb 2006 Location: Los Angeles, California Posts: 2,109	Re: Rebel T2i + Audio Technica AT875R Reid: I am the biggest fan of the AudioTechnica AT-875R, it is a superb mic for the money. Unfortunately it is a pro mic though and you are not a pro in a pro gear situation (no phantom, no XLR input). Your best bet would be to sell the AT-875R and replace it with a RØDE Videomic. Sounds great and has a 3.5mm stereo connection that will plug right into your T2i. You will need to use the free Magic Lantern firmware to turn off the AGC in your T2i. Chad Johnson posted on this same board with some helpful video samples of what this will sound like. http://www.dvinfo.net/forum/all-thin...lp-needed.html I have reviewed the RØDE for some magazines, it is a great little mic. Dan