On Friday 12 March 2010 20:08:02 [email protected] wrote: > On Fri, Mar 12, 2010 at 03:42:27PM +0300, Andrew Gaydenko wrote: > > 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 :-) > > What are the frequencies (in particular the lowest ones) ? > > Ciao,
Just now that forum is under hosting changing process, so in hands I have multitone example wav file only. Sonic-visualiser shows approximately: 20 43 93 200 430 930 2K 4K9 9K3 20K 20, 200, 2K and 20K are exact values (I just remeber them :-)). Andrew _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
