If you have a marginal voice, the vocal processor will not make it better. I highly recommend going to one of the local community colleges and looking into voice lessons. Many colleges offer them and the courses are relatively inexpensive, mainly night courses. I've always been fortunate in having the ability to sing on key, but prior to taking vocal lessons I knew little or nothing about breath control, diction techniques, and lots of other neat things that I eventually learned during the six-week course. The course can make a good singer a great singer. And, I'm sure it can make a marginal singer a good singer.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)