Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › Mini-DV Audio Volume After Capture? › I don’t know Premiere, but
I don’t know Premiere, but you should be able to normalize in Adobe Audition. If you don’t have that at hand, download Audacity, a free audio utility that works wonders. After normalizing you’ll probably have a great deal of noise in the signal, which happens anytime the source signal is weak. Use Noise Reduction to identify and minimize the background noise. Use very small sampling of the background noise — a couple of seconds only.
Work slowly and check often to be certain you’re not removing voice frequencies along with the background noise.