mp2ts audio restoration

[R55B]

Hey all, I have come across a problem with the mpeg2 audio (.mpa) demuxed from mp2ts video files with tsmuxer. After separating the audio file, I can only open it in Audacity, and its tool selection is too limited. I need to run an eq, noise filter and dynamic processor with the file to restore it to good quality before creating dvd's of the video. Goldwave and etc won't open the audio file, neither will nero's wave editor (which I used alot before). I basically need a program that will allow me to boost an mp2 split audio file to restore it, before syncing back to the video file. The source analog signal that I am capturing into an mp2ts file is from very old vhs and beta tape, which have either low or poor audio volume, or that with noise/artifaction. Any help would be appreciated...

[hech54]

Output it to .wav from Audacity...then open it in something else?