Interesting discovery. I opened RockRoll.mp3 and applied an FFT Filter in Audition as a test. In thee Filter I selected "Only the Subwoofer". Guess what , there is no sound. That seems to say there is no Bass in the file. Whats going on?
I think you'll find you've been stuffed by Camtasia. The audio in that is very basic, apparently. And your second link doesn't work, as it's been set to Private.
I suspected the problem may have been with Camtasia since it has no settings to isolate various sounds SteveG_Audiomasters. What I tried to do was separate the two tracts and boost the base tracks and then put them back together. When I choose the Mixdown selection Audition mixes two tarcks that are identical. So I sent the separate tracks to Primier Pr and linked them manually. Its clunky but.... Thats not what I wanted. I wanted to isolate treble on one track and bass in a second track. Any ideas on how to accomplish this? I am proovding a public link, but it is copyright claimed so I am not sure how long you have to access this link. Appreciate your feedback
Link to my music