How do you add a effect to a certain part of a track, not the whole track itself, how do you add a effect to a certain part of a track, not the whole track itself, how do you add a effect to a certain part of a track, not the whole track itself

Question

How can i add echo to vocals only on certain parts of the vocal without it effecting the whole vocal track itself?

Answer 1

You can only do this in newer versions of Garageband (5 & 6). 
Here's a brief tutorial::
http://audio.tutsplus.com/tutorials/production/how-to-give-life-to-garageband-tu nes-with-automation/
Or, you can simply do an old-fashioned volume cross-fade between identical tracks:
http://www.thegaragedoor.com/tutorials/automation.html