On Monday 29 May 2006 11:16, Alex Polite wrote: > Thanks for all the input. > > I did some experimentation with jamin. Cutting of everything below 300 > Hz sure helped alot. But the harmonics went right through the speech > spectrum so canceling them all out pretty much meant canceling the > speech out as well. > > I found freqtweak and hooked that up. It did produce a very beautiful > spectrogram but it didn't solve my problem. > > I need something smarter. Something that will 1) take a few seconds > of audio when there's no speech (only hum) and treat that as a > baseline. 2) Reduce the frequencies all over by that baseline. > > In effect analyzing the tool would look at the hum and create a filter > that matches it exactly. I guess there's a word for that? Yes, I think it's gnomewavecleaner (http://gwc.sourceforge.net/). Seriously, though, it sounds like you want a de-hiss/hum/noise/snap/crackle/pop (okay maybe not so serious) utility which would take a lot of the manual labour out of it. I don't think there's any magic solution, but maybe GWC would help. There's others as well (e.g. http://home.snafu.de/wahlm/dl8hbs/declick.html -- kind of old and sketchy but easy to use). HTH, Curtis S.
