Re: [LAD] detailed spectrum for wide freq range

The idea (under discussing at some of russian DIY audio forum) is to use multitone signal, compare it before and after audio amplifier and (having such *multiple* results for *different* amplifiers) to try get some - at least partially useful - correlation between results and subjective audio perceptions (in particular, "clearance" - don't know an appropriate English term; it's about how easy different instruments can be "separated" in brain). I'm not sure it is a right way, but would like to take participation in the experiment (especially with my last SE-invention :-)). Fellows (using appropriate software analyzers under MS win) show very clear spectrum plots for original multitone signal (ten -20db tones in 20Hz - 20KHz range). Having single-boot Linux, I'd want to get something the same :-)