Please do not duplicate thread. That is confusing to you as well as those trying to reply. The duplicate will probably be closed or removed by moderator when noticed as duplicate.
To your immediate question in this original of your threads....
What computer operating system is involved with your Premiere Element 13/13.1 program?
Have you unlinked the audio and video before attempting changing the speed of the video audio (presumed linked) clip?
Tools Menu/Remapping is not going to work on an audio file.
Tools/Time Stretch, you can change the Speed % for the selected audio clip. Speed % greater than 100%, for faster, and Speed % less than 100%, for slower.
However, then you run into another issue....In the first case, the duration of the audio clip is decreased. In the second case is is increased.
In Time Stretch dialog, I can unlink Speed % and duration, but am finding that, in spite of that perk, I change the Speed % and also the duration. It would appear that you cannot escape the basics of the slow or fast motion involving the increasing or decreasing of frames respectively.
Please review and consider the above. And then we can discuss this further in terms of your project goal.