hello guys everithing fine ??
i would like to ask about a frequency on .mp3 files

its possible to raise a frequency of a file that have a line constant at 9.000 and raise it to 14.000 or 15.000 ??

i have tried nuendo + waves (L3 maximizer) plugin, but couldnt get it working, if possible help me

is kinda important is for a video im doing and seems program works better with the frequency of mp3 files a bit upper

I think I understand what you're saying, and if you wish to restore lost frequencies after mp3 encoding, you're game over : they're lost. You might be able to extrapolate a few extra harmonics, but nothing much. Try to find an original of the sound you're looking for...

hmmmm,
L3 maximizer seems to be a multiband-compressor, i.e an evil thing

... but "raising the frequency from 9000 to 14000"?

L3 won't help you. It works on the dynamic of sound. As written above, you can't get back what you losted (that's why it's lossy). However, you can recreate some "fake" highs hormonics thanks to an exciter.