I have a waveform that is about 2 seconds long and I would like to extend its length by about 1 second to add an echo effect at the end of the original clip. How do I extend the duration of the original clip? I don't want to stretch the original clip, I just want to add empty space at the end so I can add additional sounds to the end of this sound effect.
Audition is a non-destructive digital audio workstation. You don't need to extend the first clip. You simply need to place any new sounds in the multitrack editor timeline after the original sound then play the entire timeline. If you are using an 'effect' to create the 'echo' then you need to extend the actual timeline so that the effects can decay naturally.