I am having problems trying to create a porn channel in sims 4t

[furlowredneck]

I have followed all the steps that I need from the instructions on MTS and  Sims Fandom and even watched a few youtube videos. I can get the videos in the game that I create and they play perfectly, but I can't get the audio to work. Going back to the steps, there is one step that I can't completely do and I figure it is my problem.  Here is the step I am having trouble with : "Return to the AUDIO menu, click on COMPRESSION and select MPEG LAYER-3 on the left side and select 320 kBIT/s, 48,000  Hz,  Stereo 40KB/s and click ok."   My problem is that I can click on the MPEG Layer-3 on the left, there is nothing at all in the right side of that, which is the only thing that I can't do in all of these instructions. I am using VirtualDub version 1.10.4.  Is this the only way to create a TV Channel in Sims 4 or is there a better way? Is there a better program other than VirtualDub to create the audio files?  Am I just not doing something right?  Thanks for any help.