2008 October 14th, 01:54
Camera noise? Is it possible to get rid of?? - HV20
I bought an external microphone (rode videomic) and even when its not on, I can still hear camera noise with no sound even playing! Ive played with manual audio levels and it helps very little. Someone please tell me this isnt the way it was meant to be!
2008 October 14th, 01:55
Moving the mic OFF the camera will help.
2008 October 14th, 02:14
I mean when the microphone is completely off I still hear some sort of weird noise that isnt being picked up by the microphone. Its just like white noise. Its not super loud but why is nosie being produced with 0 audio being recorded?
2008 October 14th, 03:13
Is the Rode Videomic plugged in to your Canon HV30's A/V jack? If it's plugged in, but not on, that is the reason why you are hearing noise on your footage.
2008 October 14th, 06:06
no, its plugged into the microphone jack.
2008 October 14th, 17:28
Yeah, sorry, that's what I meant to say. If it's plugged into the microphone jack and is not turned to on, it will create noise because of the connectivity that is made. It's as if you're plugging in a microphone that doesn't work and the HV30 is detecting its connection but isn't receiving an actual feed from it.
2008 October 14th, 17:49
But when I turn it on in a completely silent environment the noise I was hearing before doesnt change. Its always there!
2008 October 14th, 18:08
can you post a sample of the audio?
2008 October 14th, 19:19
I'm still not clear as to the noise you are getting, but try adjusting the attenuator switches in the Videomic's battery compartment. I get no real background noise at -10.
Also as JedEyeZ mentioned, attach the mic to a flash bracket to put some space between it and the camera.
2008 October 15th, 04:25
Maybe thats why, I have mine turned up around 12. But then its so hard to hear what anyones saying
2008 October 15th, 05:58
The best way to go is to have it set to -10 dB (set internally), about 50% of mic volume on the pre-amp on the HV30, with mic att turned to off, and with an extension cord (may I recommend the VC1?) so that you aren't receiving noise from the camcorder.
2008 October 15th, 06:00
I think you're a little confused, by "12" it seems that you referring to the audio level on the camera. DaFireMedic is talking about the PAD switch inside the battery compartment. Take the battery out and look inside. You can set the switch to 0, -10 and -20.
Or maybe I'm the one that's confused.
2008 October 15th, 06:16
Use a noise gate on the audio.
2008 October 15th, 23:49
Whats the noise gate?
Originally Posted by Heezzi
Also wow! I have no idea there was an audio level adjustments inside the rode videomic, very strange. Now I just have to figure out how to change the settings... haha
edit: alright found the little switched and turned it to -10 although it doesnt seem like much has changed. I still hear white noise when the microphone is off and plugged in. Unless that doesn't record... Hmmm.. I'll have to play with this more..
Last edited by munk; 2008 October 16th at 00:12.
2008 October 16th, 20:20
It's because the microphone is plugged in. If you unplug it, it should be fine.
2008 October 16th, 21:14
if you need to repair footage that the damage is already done, there is a way to do this in post. Many audio programs have a function called "noise reduction" which isolates the frequency of the hum or buzz and cuts it out. A free app (open source) called audacity can do it. It works beatifully. Heres a tutorial on how its done.
2008 October 21st, 20:09
Well I turned the noise gate on videomic to -10 and brought the camera audio level all the way up because it wasnt picking up sound that well and theres even more white noise than before, not the camera noise but just white noise... Any other suggestions?..
2008 October 22nd, 17:31
Sigh. Don't you people bother to read the forums? This issue has been discussed to death. having said that, you want to use manual gain on the HV20 so you're not getting upleveling during quiet bits. You should have the green bar set anywhere from 1/4 to 1/3 from the left. You should not turn on mic attenuation in the HV20. Do not turn on attenuation on the Rode unless your levels are too high when taping. If you aren't getting high enough levels during taping, you need to get the mic off camera and closer to the subject -- or else raise the gain in the camera which will introduce more noise from the camera's audio section.
The only way to completely eliminate motor noise is to move the mic off camera.
This stuff is not rocket science, people.