audio cutting out

[XBomb]

i switched out audio of a previous project with longer audio file (1 min longer) but the sound stops at the original audio length end.

(cs6 pc windows)

[Dave_LaRonde]

Did you make the comp longer?  You can't hear audio beyond the end of the comp.  Change it in the comp settings.

[XBomb]

the project i opened (that i made) stopped/ended at 2:40 (min:sec) I have made all the comps go to 10 min (i did it through the comp settings (all individually), and the final project. The audio that I added is 3:37 sec long. I did both a ram preview and rendered it , but the audio and all effects linked to the keyframes for the audio all stop at 2:40

i dont know how to fix this, but i can redo it all if i have to (but i dont want to)

[Dave_LaRonde]

All righty then!

It's pretty plain from the terminology you use that you don't have a firm grasp on what you're doing.

That happens a lot!  As in, "about ten times a week".  People get AE thinking, "how tough can this be?", and they immediately get lost. Because AE is so complicated and quirky,  the answer to the "how tough" question is, "extremely tough!".  So there's this learning system in place, and it works pretty well.

Rather than wasting our time and yours with a constant back-and-forth barrage of questions & answers,  Adobe has thoughtfully made these dealies called "Basic Tutorials".  People run them, learn basic things, and get better and better as they go along.  They learn AE terminology, which makes communication a lot clearer.  And in time, people get pretty good at AE.

So how do I get those Basic Tutorials, Dave?

Lucky you!  You'll find 'em right here:

After Effects tutorials

You learn AE step-by-step.  You don't jump into the deep end of the pool right away.  If you try, you'll be wearing lead weights, which is no good.

[Szalam]

Without knowing a lot more about the template you downloaded, it is going to be hard to offer any better advice than what Dave just suggested.

Templates can be very complex. Changing the length of some of them is nearly impossible for a beginner. It's frustrating enough as an expert with over a decade of experience (that's why I rarely use them - I always want to change stuff and, in the long run, it's faster for me to just build the whole thing myself).