dBU, FS., 0VU

A place to ask the basic questions, a place for students, newbies, and everyone else.

Moderators: rick, Mark Bassett

dBU, FS., 0VU

Postby Wiz » Fri Jan 04, 2013 10:48 am

Just want to run this passed you guys, I keep having a brain space out.

I have two converters I am going to use, one ADAT'd to the other.


Converter A is 19dBU = 0dBFS

Converter B is 16dBU = 0dBFS

that would give (assuming +4du = 0VU) 15 and 12 db headroom respectively.

I want 20dB headroom.


I run test tone out of converter A at -20dBFS and set my VU meters (attached to this converter as well) to 0VU.

This means my level out of that converter is -1dBu = 0VU (instead of the normal +4dBu)


to achieve parity between the converters, level wise, is where my brain is spacing out. The only thing I can think of is, that 0VU on the second converter has to be -1dBu which means it will have to run it at 17dB head room.


summarise for clarity and less befuddlement

Converter A will have 20dB headroom and its 0VU point will be -1dbU

Converter B will have 17dB headroom and its 0VU point will also be -1dBU
Peter Knight

Cant ego loquemur Latine

http://www.ozlandmusic.com
Wiz
Valued Contributor
Valued Contributor
 
Posts: 1071
Joined: Thu Dec 03, 2009 10:17 pm

Re: dBU, FS., 0VU

Postby rob » Tue Jan 22, 2013 7:48 pm

I can see you've been left all alone with no answer to this.

From a quick look your maths seems correct.
User avatar
rob
TRM Endorsed
TRM Endorsed
 
Posts: 1006
Joined: Tue May 10, 2005 9:16 pm
Location: Adelaide

Re: dBU, FS., 0VU

Postby Wiz » Tue Jan 22, 2013 7:51 pm

rob wrote:I can see you've been left all alone with no answer to this.

From a quick look your maths seems correct.



Thanks rob
Peter Knight

Cant ego loquemur Latine

http://www.ozlandmusic.com
Wiz
Valued Contributor
Valued Contributor
 
Posts: 1071
Joined: Thu Dec 03, 2009 10:17 pm


Return to You've gotta start somewhere.

Who is online

Users browsing this forum: No registered users and 2 guests


cron