On Fri, Apr 04, 2003 at 10:02:47AM +0200, Roel de Wit wrote: > Hi, > > I've been playing with Sox for a while but I can't seem to find how to do a > specific thing. Could somebody please tell me if what I want is possible and > if so, how to do it. > > One of the things I want to do is to boost a range of frequencies. Basically > from 20 Hertz to 320 Hertz, where 80 Hertz is considered the 'center' and > the boost gets less when going to 20/320 Hertz. I have found the > highp(ass)/lowp(ass) options but these don't seem to be of use for this. I'd > really appreciate some help here. What you need is a parametric EQ, try ecasound http://www.eca.cx/ If you set a bandwidth of 1 octave and centre freq. of 80Hz you will get full boost at 80Hz, half at 40/160, a quarter at 20/320 and so on. If the ecasound builtin parametric doesn't have enough control try the one from http://plugin.org.uk/ , which will run under ecasound. - Steve
