• VEGAS Pro

  best way to normalize multiple audio tracks ??

  Posted by Wayne Grauel on February 20, 2008 at 1:23 pm

  i have a production with 3 audio feeds – all mics – and to keep things in line, i tried to normalize the audio after i rendered my project to a ( final) avi file. from what i can see this made the avi file huge in comparison to the original rendered file.
  to do this, I took the “combined” audio ( now 1 stereo track) from the rendered avi was taken into soundforge and normalized.. then saved back to the rendered avi file so that there are no big spikes in the audio. ( its a one hour rendered video ).. so

  also a dialog window came up and said that metadata could not be saved with the file.

  whats the best way to keep all 3 audio tracks in line so the final video stays about -3db? ( short of babysitting this and watching the VU’s)

  can all of the tracks be ‘pre rendered” to a wav file… and then rendered with the video.. ( seems like a huge possibility that audio may not sync with the speaker if i did that?

  Terry Esslinger replied 18 years, 2 months ago 6 Members · 8 Replies
• 8 Replies

• 

  Edward Troxel

  February 20, 2008 at 1:40 pm

  [Wayne Grauel] “i tried to normalize the audio after i rendered my project to a ( final) avi file. from what i can see this made the avi file huge in comparison to the original rendered file.”

  Adjusting audio should affect the size of the AVI file in no way. It sounds to me like you possibly started with a DV-AVI file and then rendered to an UNCOMPRESSED AVI file???

  Edward Troxel
  
• 

  Wayne Grauel

  February 20, 2008 at 2:38 pm

  For some reason.. if i render my entire project to an AVI file.. and then take that file and process the audio.. even rendering was going to take all day.. so then It dawned on me…

  … why not just render the multiple audio tracks to a “NEW TRACK” in vegas and delete the old ones ( after saving the veg as a different file name!).. then I applied normalization and compression to the new rendered file in vegas… not done yet, but the render time for the audio seems about right… rather than having 10 minutes go buy on a 1 hr timeline and only 7 percent of the rendered audio done… so.. this should have it…

  render to new tracks in vegas and then render out avi backup and mpg from there.

  thanks
  Wayne
• 

  Douglas Spotted eagle

  February 20, 2008 at 2:53 pm

  Unless you’re *absolutely* sure you don’t need the original audio to be shiftable again, I’d recommend you consider keeping the project as-is, and either muting the multiple audio tracks, or saving the project as a new project name so you can get back to the original audio at some point.
  How many audio tracks do you have that are causing the system to lock up?

  Douglas Spotted Eagle
  VASST

  Certified Sony Vegas Trainer
  Aerial Camera/Instructor
• 

  Wayne Grauel

  February 20, 2008 at 4:02 pm

  Hey Spot.. (save project to a new Veg File…) I did that!… ( saved the veg as a new file… )

  OMG.. I can imagine deleting days of work just to find that something is screwed up in my “new audio file”…

  thanks for the heads up.

  Before.. it was a matter of taking my project and rendering it out as a new AVI file…

  then bringing that avi file into vegas and editing a copy of the audio track in SF9.. normalizing the video…

  at that point it just crawled when rendering the new ‘copy” of the file.

  Doing it in Vegas as a rendered track worked great.. don’t know why i did not think of it earlier…

  Thanks ..
  Wayne
• 

  Kevin Mccarthy

  February 20, 2008 at 4:18 pm

  I find it much easier to to do audio sweetening in Adobe Audition. I have made it my audio editor in Vegas and it is very easy to work on audio files and it gives you the option to replace or save as a copy seperate from your original file. Vegas has some great audio apps, but I have had problems with normalizing tracks, especially if I go back and forth from normalized to not normalized.
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  Terry Esslinger

  February 20, 2008 at 5:03 pm

  Spot,
  I could run a couple of short experiments to find this out but I thought I would just ask first:>)
  You stated ” and either muting the multiple audio tracks“> Does this mean that when you render a project any muted tracks (either audio or video) do not render? I was under the impression that the mute just worked while working on the project. Never really thought about it.
• 

  Rick Mac

  February 20, 2008 at 6:50 pm

  [Terry Esslinger] “Does this mean that when you render a project any muted tracks (either audio or video) do not render? I was under the impression that the mute just worked while working on the project.”

  Muted tracks within a project are not rendered out.
  They do stay a part of your project file.

  Regards, Rick.

  Rick Mac
  Director of Audio Production
  TCT Network – Directv 377
• 

  Terry Esslinger

  February 20, 2008 at 10:05 pm

  You learn something useful everyday you keep your eyes and ears open!

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