Note: I tried a new render encoder on this video and it appears that the audio is a little out of sync. (I used the Sony AVC *.mp4 codec – this also creates a file 3 times larger than the MainConcept encoder) – yes, I am always testing. 🙂
Sorry it has taken me a bit longer to publish part two of this hack to disable your AGC on your Canon DSLR (7D, T2i 550D).
Our family took a trip to Ouray Colorado to visit some friends over the 4th of July weekend where I took hundreds of photos and tons of video clips.
I am getting more and more comfortable taking pictures and video with just one camera now.
Anyway back to the hack to disable the AGC.
If you haven’t yet, go back and watch part one of this hack where I demonstrate the differences between the AGC enabled and disabled.
From Tarvi Roos For the Mac Final Cut Pro Users
I had some old West Penn 2 conductor #22 gauge stranded shield cable lying around that I used for the audio cable.
You don’t need something as professional as West Penn wire but you should buy the best cable you can find because we are unbalancing the Rode Videomic which means you will not want to remote this microphone more than 20′ away because it will probably pick up a lot of electromagnetic noise around other electrical devices. I have remoted this cable over 10 feet without any noise or frequency response issues.
Strip back the wire and solder the red wire to the tip, black wire to the ring and the shield to the sleeve.
On the connector that will plug into your Canon camera, connect the red wire from the mic connector to the tip of the 1/8″ plug and the red wire of the mp3 player to the ring of the 1/8″ plug. Clip off off the black wire for each. Then solder both shields to the sleeve to the 1/8″ plug.
You might think you can just buy one of these y-adapters from radio shack like I did but you can see that the shield is missing from the connector which is required for this to work so don’t waste your money on this connector.
Then connect your Videomic and your mp3 player and then connect to your T2i 550d or 7d.
What I liked about having an mp3 player is I can accurately reset my level adjustment on my mp3 player each time. You can use many other things for this like a metronome tone or even a pick noise generator.
You need to accurately set the level each time you record. If the level is to low it won’t squash the AGC all the way but too much and you can get cross talk in to the mic channel. Even though I can’t hear anything above 16k since I was a teenager you can still hear some of the sub harmonics of the tone but it is not too annoying on playback on the small t2i speaker.
Download the 19kHz tone (one hour long). Right click and “save target as” (unless you are really young you will not be able to hear this).
That is pretty much it, watch part I on how to processes the audio tracks.