A Mic is a Mic when connected to the 7D at DVinfo.net

Jason McDonald · February 6th, 2010, 02:27 AM

Am I wrong in saying that a mic is a mic (No better or worse quality) when plugged and recorded directly into the 7D? I used the H4n and the Rode Stereo Video mic with the deadcat to capture the audio in the video below. In a very quick test at home I found the Rode mic attached to the H4n was able to cut out some of the noise (Hiss) in the audio that the mics on the H4n would capture.

A noob mistake perhaps? Thinking that a better mic attached to the 7D (Or 5D for that matter) would be that much better than the onboard mic?

Colin Rowe · February 6th, 2010, 01:59 PM

Its the pre amps on the 7d. try a decent xlr adaptor, Juicedlink models have about the best pre amps out there. It would also allow you to use 2 mics at the same time, ie shotgun and radio, and give you level control on both. They have just released an add on for DSLRs. http://www.juicedlink.com/index_file...dio_mixers.htm

Brian Luce · February 6th, 2010, 02:55 PM

It's not clear what you're asking. The onboard audio of the 7D is lousy. Using a good mic directly plugged in to the 7D will improve your audio. Using a dedicated recorder like the Zoom will improve your audio. Using an external preamp like the Juiced link will improve your audio.

Brian Brown · February 6th, 2010, 02:59 PM

Jason, the hiss is from the AGC (auto gain circuitry) that presently cannot be defeated. Colin's link to the DN101 attempts to defeat the auto gain by blasting a steady signal through one of the inputs on a Juiced Link. It will also limit you to a single mono channel, since the other channel contains the defeat signal.

For the combo price of a Juicelink mixer AND the DN101 defeat-er, you could buy a separate field recorder like a Zoom h4n or a Tascam DR-100. Double-system sound can be a pain in production and post-production, but will always give better quality and flexibility over any on-camera solution.

HTH,
Brian Brown

February 6th, 2010, 02:27 AM	#1
Jason McDonald Major Player Join Date: Jul 2009 Location: Japan Posts: 295	A Mic is a Mic when connected to the 7D Am I wrong in saying that a mic is a mic (No better or worse quality) when plugged and recorded directly into the 7D? I used the H4n and the Rode Stereo Video mic with the deadcat to capture the audio in the video below. In a very quick test at home I found the Rode mic attached to the H4n was able to cut out some of the noise (Hiss) in the audio that the mics on the H4n would capture. A noob mistake perhaps? Thinking that a better mic attached to the 7D (Or 5D for that matter) would be that much better than the onboard mic? I Feel Pretty - Chigusa on Vimeo

February 6th, 2010, 01:59 PM	#2
Colin Rowe Major Player Join Date: Jan 2004 Location: Cornwall UK Posts: 793	Its the pre amps on the 7d. try a decent xlr adaptor, Juicedlink models have about the best pre amps out there. It would also allow you to use 2 mics at the same time, ie shotgun and radio, and give you level control on both. They have just released an add on for DSLRs. http://www.juicedlink.com/index_file...dio_mixers.htm __________________ Colin Last edited by Colin Rowe; February 6th, 2010 at 01:59 PM. Reason: Additions

February 6th, 2010, 02:55 PM	#3
Brian Luce Inner Circle Join Date: Jan 2006 Posts: 2,290	It's not clear what you're asking. The onboard audio of the 7D is lousy. Using a good mic directly plugged in to the 7D will improve your audio. Using a dedicated recorder like the Zoom will improve your audio. Using an external preamp like the Juiced link will improve your audio.

February 6th, 2010, 02:59 PM	#4
Brian Brown Major Player Join Date: Dec 2006 Location: Estes Park, CO USA Posts: 426	Jason, the hiss is from the AGC (auto gain circuitry) that presently cannot be defeated. Colin's link to the DN101 attempts to defeat the auto gain by blasting a steady signal through one of the inputs on a Juiced Link. It will also limit you to a single mono channel, since the other channel contains the defeat signal. For the combo price of a Juicelink mixer AND the DN101 defeat-er, you could buy a separate field recorder like a Zoom h4n or a Tascam DR-100. Double-system sound can be a pain in production and post-production, but will always give better quality and flexibility over any on-camera solution. HTH, Brian Brown