How to edit audio in Sony Vegas 12

[ngoclan2435]

How can I edit audio to make it up in one section, then low down in a next section?
Thanks for any help.

 

[bagiai2000]

Hi,'I have the same question. How to edit audio, for example in one clip of 10 minutes, I want to low the audio to 50% the first 4 minutes, then 20% the next 2 minutes, then the last part raise up to 100%. Is there a way to edit like that? Thanks for any help.
Dave

 

[kenrivers]

Looks like you need to use Audio Envelopes.
"You can adjust the volume of your audio track over time by using a Volume Envelope and setting envelope points. Click on your audio track to select it. From the menu, choose Insert – Audio Envelopes – Volume
You can double-click anywhere on the envelope band to create a point. Next, left-click and drag to adjust the volume up or down as needed."
Source: http://www.eventdv.net/Articles/Editorial/Tutorials/Sony-Vegas-Tips-26-Tricks-Audio-Normalization-and-Noise-Reduction-52451.htm