NR (which channel)? at DVinfo.net

Adi Head · June 13th, 2003, 02:21 AM

say i want to record sound on my pd150: channel 1- on board mic, channel 2 - wireless mic. do i leave the Noise Reduction ON so that the onboard mic doesn't pick up noise? or do i switch it off so that the channel recording the wireless mic doesn't record that strange metalic buzz which accurs when recording with a remote mic while NR is on?

sort of urgent. going to shoot with the above setup in about an hour.

thanks

Mike Rehmus · June 13th, 2003, 10:02 AM

You cannot remove the buzz so turn it off.

In a reasonably noisy environment, any noise generated by the camera is masked by the environmental sound. I leave mine off and never have a problem unless the surrounging environment is very quiet.

I've forgotten the switch is there.

Adi Head · June 14th, 2003, 11:43 AM

thanks. i actually had it on. didn't get your reply in time. but tested before the wedding began and sound seemed fine during playback, so thats how i left it.

when shooting a documentary about 3 months ago, i was actually directing and not operating the camera, the camera guy had noise reduction ON. sound was recorded with a boom microphone, connected to the pd150 through a mixer. footage of interviews clearly had a slight metalic buzz which would appear when the talker was talking and would fade away a fraction of a second after the speaker stopped.

turned noise reduction OFF and the problem was gone.

but i thought that when using a mic mounted on the camera as primary source of sound, it is better to turn noise recuction ON.

Mike Rehmus · June 15th, 2003, 01:01 AM

I've modified my PD150 with a CAC-12 microphone mount so maybe that and the more directional microphone from my DSR-300 makes a difference. But I don't get much, if any camera noise from my setup and if I did, it would normally be masked by the environmental noise I encounter in most shoots.

I can only remember hearing the zoom motor noise once in the year + I've owned PD150's. Even when the drum bearings wore out, the sound didn't reach the audio unless I folded the microphone right down next to the tape door.

Vince Denali · June 24th, 2003, 01:16 AM

What exactly does this noise reduction do? I would guess that it's simply a noise gate. If no one knows, I'll run some experiments and report.

Mike Rehmus · June 24th, 2003, 10:03 AM

Please test. I turned mine off and will never turn it on again so I haven't played with it.

June 13th, 2003, 02:21 AM	#1
Adi Head Major Player Join Date: Aug 2002 Location: Brooklyn, NY Posts: 642	NR (which channel)? say i want to record sound on my pd150: channel 1- on board mic, channel 2 - wireless mic. do i leave the Noise Reduction ON so that the onboard mic doesn't pick up noise? or do i switch it off so that the channel recording the wireless mic doesn't record that strange metalic buzz which accurs when recording with a remote mic while NR is on? sort of urgent. going to shoot with the above setup in about an hour. thanks

June 13th, 2003, 10:02 AM	#2
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	You cannot remove the buzz so turn it off. In a reasonably noisy environment, any noise generated by the camera is masked by the environmental sound. I leave mine off and never have a problem unless the surrounging environment is very quiet. I've forgotten the switch is there. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

June 15th, 2003, 01:01 AM	#4
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	I've modified my PD150 with a CAC-12 microphone mount so maybe that and the more directional microphone from my DSR-300 makes a difference. But I don't get much, if any camera noise from my setup and if I did, it would normally be masked by the environmental noise I encounter in most shoots. I can only remember hearing the zoom motor noise once in the year + I've owned PD150's. Even when the drum bearings wore out, the sound didn't reach the audio unless I folded the microphone right down next to the tape door. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

June 24th, 2003, 10:03 AM	#6
Mike Rehmus Wrangler Join Date: May 2002 Location: Vallejo, California Posts: 4,049	Please test. I turned mine off and will never turn it on again so I haven't played with it. __________________ Mike Rehmus Hey, I can see the carrot at the end of the tunnel!

June 14th, 2003, 11:43 AM	#3
Adi Head Major Player Join Date: Aug 2002 Location: Brooklyn, NY Posts: 642	thanks. i actually had it on. didn't get your reply in time. but tested before the wedding began and sound seemed fine during playback, so thats how i left it. when shooting a documentary about 3 months ago, i was actually directing and not operating the camera, the camera guy had noise reduction ON. sound was recorded with a boom microphone, connected to the pd150 through a mixer. footage of interviews clearly had a slight metalic buzz which would appear when the talker was talking and would fade away a fraction of a second after the speaker stopped. turned noise reduction OFF and the problem was gone. but i thought that when using a mic mounted on the camera as primary source of sound, it is better to turn noise recuction ON.

June 24th, 2003, 01:16 AM	#5
Vince Denali Regular Crew Join Date: Jun 2003 Location: Santa Clara, CA Posts: 33	What exactly does this noise reduction do? I would guess that it's simply a noise gate. If no one knows, I'll run some experiments and report.