Start reading on volume and keyframing. Don't use the razor tool.
Along with Keyframing, take a look at the Audio Mixer in Help, as it can do that too, with a slightly different method of Keyframing.
Also, what version of PrPro are you using? Some things changed between CS 5.5 and CS 6, regarding Audio.
For previous versions (going to add some tutorial links to it now, for CS 6), this article might be helpful: http://forums.adobe.com/message/3472343#3472343
I am working wih PPro CS 6.
My song is only on 1 track (A2). I need to isolate the part that I want lower for 30 seconds so that's why I cut it with the Razor Blade Tool.
I click on it and I can get the Audio Meters, but when I lower track A2 the whole track lowers. I need that 1 piece to lower.
I tried it the following way, and it works but is there an easier way without have to keyframe anything?
1) I clicked on the 30 second piece of audio I want to lower
2) I then Right clicked on it and went to "Audio Gain"
3) I then went to "Normalize All Peaks" and changed the level to -30db
4) Then I presed play and it was louder before the 30 seconds and then the 30 second clip was lower abd then it got higher again after the 30 seconds was over. Perfect.
Thanks in Advance
You're making it too hard. Read here:
If you decide to use volume keyframes instead of writing track keyframes with the audio mixer, there's no need to chop up the clip(s). Just set a keyframe at the point where you want the volume to be constant, and another keyframe with the same value at the point where you want to change the volume. Then set a volume keyframe a few frames later at the level you want for the next section. Lather, rinse, repeat.
To illustrate part of my friend Jeff's statement about keyframes, if you just want to lower the volume visually, like I usually do, then this is what it looks like. Track one is the speaker, track two the music.
You just expand the track by twirling down the arrow, the where you want the volume to start changing you Ctrl-click on the yellow line. Then you go a second or so down the timeline and Ctrl-click again. Then you move down to where you want the music to start coming back up and Ctrl-click a third time. Then a second or so down the line you do it one more time.
You now have four points on the line. Using the mouse you drag the middle of the line down. You'll notice that when you do that, there will be a tooltip to tell you the dB drop. If I recall correctly, a 6dB drop reduces the volume by half.
See the yellow line on track two? And the little points on the line. I didn't do a very good job, actually, since the music should be dropping down just as the voice comes up and coming up just before the end of the voice.