The definition of 'normalization' in the description of the software linked below is, IMHO, too vague. And normalization is not enough for your purpose. To my understanding, normalization means finding the maxpeak level of the entire track and scale the signal to use the highest possible level without having distortion (when there's the maximum peak). I suggest that you *just need to trust your ears*, listening to the first track and the adjusting the volume of the second according to your perception. A compressor/limiter would help with the peaks. Try this instead: http://jamin.sourceforge.net/ or just apply a compressor before the output of your audio software of choice. c. www.cesaremarilungo.com Andrew Lewis wrote: >Marcos Guglielmetti wrote: > > >>As instance, suppose I want to master my song at a similar RMS level as >>another audio file has. >>What should I use? >> >> > >http://www1.cs.columbia.edu/~cvaill/normalize/ > >-Drew > > > >