How do you stitch multiple AC-3 files together? -Sound Forge - PC

Subject:How do you stitch multiple AC-3 files together? Posted by: CoolBlue Date:10/6/2007 11:54:58 PM Here is the problem. My main video in Vegas has audio of different volumes in each scene. So I selected Split points where the differences occur. Now I want to render each section to a seperate AC-3 file so I can choose the correct DialNorm for each section. After doing this I have multiple AC-3 files that I want to join together. Can this be done? I want to keep the Video as one file, so I don't want to re-render the video.
Subject:RE: How do you stitch multiple AC-3 files together? Reply by: Kennymusicman Date:10/7/2007 3:23:46 AM Are you using VMS or Vegas Pro? If Pro, just use volume envelope to correct volume differences, and this will negate any splitting/AC3 funny-business. If VMS, and you have the full version of SForge, same idea, but in soundforge. Use a single file with the vol envelope ("V") and sort out vol differences. Again, this saves splitting file, playing with different DialNorm values and therefore solves your problem. HTH Ken
Subject:RE: How do you stitch multiple AC-3 files tog Reply by: Chienworks Date:10/7/2007 3:57:26 AM Even in Vegas Studio, one can split the timeline audio event at those points and adjust each section individually.
Subject:RE: How do you stitch multiple AC-3 files tog Reply by: Kennymusicman Date:10/7/2007 4:12:46 AM [I could not speak for VMS since I have not used it, only the full version]
Subject:RE: How do you stitch multiple AC-3 files tog Reply by: CoolBlue Date:10/7/2007 11:43:09 AM I have V8 and SF9. Okay thanks. I'll just "eyeball" the volume differences and adjust the gain of each part. This should be good enough. But I am suprised that Sound Forge and Vegas don't support AC-3 files more. You can't even import, only export. I know AC-3 is a delivery format and not meant to edit, but sometimes you run into a situation like above. At least allow us to mark different sections on the timeline, and apply different DialNorm to them when it is encoded. That would be a handy feature. Then I wouldn't have to adjust the gain. UPDATE: I have now submitted this suggestion to Sony, so hopefully they will listen to my suggestion. Message last edited on10/7/2007 11:56:59 AM byCoolBlue.
Subject:RE: How do you stitch multiple AC-3 files tog Reply by: Chienworks Date:10/7/2007 12:21:35 PM How is being able to set distinct regions to different DialNorm values better or easier than adjusting the gain? I can't see any advantage.
Subject:RE: How do you stitch multiple AC-3 files tog Reply by: ForumAdmin Date:10/9/2007 7:05:43 AM It's not a technical issue or an oversight. SCS products do not currently import AC-3 files due to licensing restrictions on the format. J. Message last edited on10/9/2007 7:43:59 AM byForumAdmin.

Subject:How do you stitch multiple AC-3 files together?

Posted by: CoolBlue

Date:10/6/2007 11:54:58 PM

Here is the problem. My main video in Vegas has audio of different volumes in each scene. So I selected Split points where the differences occur.

Now I want to render each section to a seperate AC-3 file so I can choose the correct DialNorm for each section.

After doing this I have multiple AC-3 files that I want to join together. Can this be done? I want to keep the Video as one file, so I don't want to re-render the video.

Subject:RE: How do you stitch multiple AC-3 files together?

Reply by: Kennymusicman

Date:10/7/2007 3:23:46 AM

Are you using VMS or Vegas Pro?

If Pro, just use volume envelope to correct volume differences, and this will negate any splitting/AC3 funny-business.

If VMS, and you have the full version of SForge, same idea, but in soundforge. Use a single file with the vol envelope ("V") and sort out vol differences. Again, this saves splitting file, playing with different DialNorm values and therefore solves your problem.

HTH

Ken