In some of your projects you mentioned that you wanted your audio to change in speed as you altered your video speed using the Time remap feature. Oddly enough Premiere does not warp the pitch of the audio along with the change in video speed.
There is a solution however with another Adobe product, one that is dedicated to audio: Adobe Audition
Here is a video tutorial on Adobe TV that describes the tools that you can use to accomplish a gradual audio slowdown/speed up.