NOISE REDUCTION in Sony HVR-Z7, what is this? at DVinfo.net

Steph Grueso · May 6th, 2009, 03:37 AM

Hello I saw in our new Sony HVR-Z7 a NOISE REDUCTION setting for audio. In the manual there is nothing about this... There only says "reduces noise from the microphone".
Does anyone know what this setting does and how and when you should use it?

Thank you in advance.

Gary Nattrass · May 6th, 2009, 11:03 AM

I have tried it and it seems to cut rf type noise from the camera, certainly with it switches off I can hear more of the mechanisms in the camera bleeding onto the mic.

The wind setting is a different thing altogether and is a straight bass roll/high pass filter.

Luc De Wandel · May 6th, 2009, 02:46 PM

Quote:

Originally Posted by Gary Nattrass

I have tried it and it seems to cut rf type noise from the camera, certainly with it switches off I can hear more of the mechanisms in the camera bleeding onto the mic.

I presume it is meant to reduce the noise of the image stabiliser. When switched on, the image stabilisation system makes a clearly audible noise - a kind of humming - that is recorded in quiet circumstances.

Steph Grueso · May 7th, 2009, 01:12 AM

So, then I presume you only have to use it when you use the mic mounted on the camera support. But there not seems to be a way to activate it in just one channel... It will it affect the other channel coming from the mixer. Would you leave it always on?
Thanks
St.

Luc De Wandel · May 7th, 2009, 01:36 AM

Quote:

Originally Posted by Steph Grueso

So, then I presume you only have to use it when you use the mic mounted on the camera support. But there not seems to be a way to activate it in just one channel... It will it affect the other channel coming from the mixer. Would you leave it always on?
Thanks
St.

I would switch it off, because electronic noise reducing systems always mute some frequencies. Instead I would use a microphone with no omnidirectional characteristics somewhat further away from the camera. You could use the cold shoe on top of he cam to put a shotgun mic there.

May 6th, 2009, 03:37 AM	#1
Steph Grueso New Boot Join Date: Jul 2005 Location: Berlin, Germany Posts: 8	NOISE REDUCTION in Sony HVR-Z7, what is this? Hello I saw in our new Sony HVR-Z7 a NOISE REDUCTION setting for audio. In the manual there is nothing about this... There only says "reduces noise from the microphone". Does anyone know what this setting does and how and when you should use it? Thank you in advance.

May 6th, 2009, 11:03 AM	#2
Gary Nattrass Trustee Join Date: Apr 2008 Location: Cornsay Durham UK Posts: 1,992	I have tried it and it seems to cut rf type noise from the camera, certainly with it switches off I can hear more of the mechanisms in the camera bleeding onto the mic. The wind setting is a different thing altogether and is a straight bass roll/high pass filter. __________________ Over 15 minutes in Broadcast Film and TV production: http://www.imdb.com/name/nm1044352/

May 7th, 2009, 01:12 AM	#4
Steph Grueso New Boot Join Date: Jul 2005 Location: Berlin, Germany Posts: 8	So, then I presume you only have to use it when you use the mic mounted on the camera support. But there not seems to be a way to activate it in just one channel... It will it affect the other channel coming from the mixer. Would you leave it always on? Thanks St.