Under audio options you will find: Render and Replace. Give that a go if you audio is not of the wave format.
What you may hear is something that can occur because clip 1 is not cut/ended at the same level as clip 2 is starting.
One way to avoid the pop could be to keyframe the volume at the end of clip 1 and the start of clip 2. At clip 1, set a volume keyframe to 0dB at one frame before the end, and a keyframe to -99dB (or whatever the lowest is) at the last frame. Then at clip 2, do -99dB (or -xxxdB) at the first frame and 0dB at frame #2.
EDIT: A zero-cross-switch could be handy, but maybe hard to fit to a frame based cut.
I get that popping occasionally. I fix it by using audio key frames on the tips of the two joining clips. Drag the key frames down and around until you eliminate the pop without stepping on any of the audio you want to keep.
Thank. I will try this.
Along those same lines, one could finish the edits, and then Export the Audio to file. In Audition (maybe SB too), it's easy to address the transients. This cleaned up file could then be Imported and used to replace all Audio with it. I'd definitely leave the original Audio, and just Mute it, incase I had to do any re-edits.
It seems that these "pops" show up more in Export, than on the Timeline, but they could also be appearing there, as well. Were they on my Timeliene, and visible in the Waveform, I'd run the Audio for that Clip(s), though Audition to eliminate the Transient and just replace with the Save file from Audition. As I have Edit in Audition (do not use SB), it's basically a three click operation for me.
Good luck to the OP,