Avid Pro Audio Community

Avid Pro Audio Community

How to Join & Post  •  Community Terms of Use  •  Help Us Help You

Knowledge Base Search  •  Community Search  •  Learn & Support


Avid Home Page

Go Back   Avid Pro Audio Community > Legacy Products > Pro Tools TDM Systems (Mac)
Register FAQ Today's Posts Search

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 08-10-2006, 04:26 PM
gilfeldman gilfeldman is offline
Member
 
Join Date: Aug 2006
Posts: 10
Default strange 7.2 problem

Hi all.
I have a strange 7.2 problem.
When I first installed 7.2 and opened a 7.1 session on which I was working just the day before it sounded a little different to me. My first reaction was that I must be crazy, so I bounced the session from the 7.2 and the same session with 7.1 and made a cd. I must say it didn’t sound the same. Then I decided to make another test:
I created a new session, added a master track and an aux track with signal generator 1k -18db and got the reading of -18 on the aux and -20.5 on the master ( it was a stereo master so no problems so far). I dup the aux track so now I have 2 aux tracks with 1k at -18 and got a reading of -26 on the master( as much as I know it should be -15 or so ). I made another dup so now I have 3 aux with 1k@-18 and got a reading of -18 on the master (which now should be -12 or so). Then I muted the third aux and another strange thing happened, the level went up.
I tried to trash all the prefs reinstall the program downloaded a fresh copy checked all the prefs but couldn’t find anything wrong. When I did the same thing on 7.1 it worked as it should.
I’m on a dual2.7, HD3, 10.4.6.
I took snapshots of the session with the readings and you can DL it from my idisk: gilfeldman3 and it’s in my public in a folder pt72.
If anyone have an idea please let me know.
Gil
Reply With Quote
  #2  
Old 08-10-2006, 04:47 PM
cmaynes's Avatar
cmaynes cmaynes is offline
Member
 
Join Date: May 2000
Location: Burbank,CA,USA
Posts: 716
Default Re: strange 7.2 problem

Gil-

one problem with your test is that the signal generator is not running synchronously on the 3 aux's, so you could have some phase cancellation happening. Try the following- create your stereo aux with the signal generator- then buss that to three stereo aux's. then check the volume level at the master fader- It should be what you are expecting.

charles maynes
__________________
charles maynes
sound design and recording for film and media
818 618 0580

Member IATSE Local 700, MPSE, ATAS, NRA & USMCHC.
Reply With Quote
  #3  
Old 08-10-2006, 05:04 PM
gilfeldman gilfeldman is offline
Member
 
Join Date: Aug 2006
Posts: 10
Default Re: strange 7.2 problem

same thing
Reply With Quote
  #4  
Old 08-10-2006, 08:37 PM
filmixer filmixer is offline
Member
 
Join Date: Sep 2003
Location: Studio City, CA, U.S.A.
Posts: 1,007
Default Re: strange 7.2 problem

I just did your test with 7.2 and the channels are adding as they should. I tried it with stereo auxes as well and everything is normal. If you load your mixes into a session and invert the phase on one, do you get a significant null?
__________________
Mark Ettel C.A.S.
Reply With Quote
  #5  
Old 08-10-2006, 09:27 PM
gilfeldman gilfeldman is offline
Member
 
Join Date: Aug 2006
Posts: 10
Default Re: strange 7.2 problem

I took the mix from the 7.1 and the one from the 7.2 and did not get a significant null.
I just got the install DVD from Digi so I’m about to try to install everything again.
Gil
Reply With Quote
  #6  
Old 08-11-2006, 06:35 PM
gilfeldman gilfeldman is offline
Member
 
Join Date: Aug 2006
Posts: 10
Default Re: strange 7.2 problem

I reinstalled 7.2 from the dvd and all is good.
tnx for your help
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
8.04 Strange Problem RBp Pro Tools M-Powered (Win) 2 07-21-2010 04:56 PM
strange problem HDK_Ent 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Win) 8 03-13-2010 08:01 AM
strange problem help koka Pro Tools TDM Systems (Mac) 0 05-16-2008 01:57 PM
Strange Problem... Zetajazz44 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Win) 4 11-13-2005 09:08 PM
strange 001 problem Robocop 003, Mbox 2, Digi 002, original Mbox, Digi 001 (Mac) 0 02-14-2003 02:39 PM


All times are GMT -7. The time now is 08:02 PM.


Powered by: vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Limited. Forum Hosted By: URLJet.com