Audacity 2.0.3
Windows XP
I have a music track and want to add a sound effect at 2 points… about 52 seconds and about 2 minutes and 12 seconds into the song.
I think that the sound effect has to be on a separate track… how do I place it where it needs to go?
I’m a new user so I apologize in advance for asking such a basic question, but I couldn’t figure it out. 
Thanks.
Mike D.
Not a problem.
Yes, they need to be on separate tracks.
Open the music bed. Import the two effects tracks and they will appear one on top of the other. If you play right now, all three will play at once. You can adjust this with the MUTE and SOLO buttons to the left of each track.
Use the Time Shift Tool (sideways black arrows) to push each track sooner and later in time to position it at the time it’s required. Then you an use the volume sliders to the left of each track to change the overall volume. If you need second by second volume changes then it’s a little more involved.
Select the track (by clicking just above the MUTE button on the track) and run the envelope tool (two white arrows and bent blue line). This will let you click and move the volume note by note if needed.
Here’s a two-track cross-fade I did with the envelope tool. The top track fades out and the bottom track fades in.
http://kozco.com/tech/audacity/pix/CrossFade.jpg
You should know that once you start adding tracks and audio to a show, you could encounter overload damage.
Koz
It worked… thank you! 