Hi Anthony
As I recall you asked me to do a square wave frequency sweep for linearity, Square waves as readers might or might not know, are the furthest
one can go from reality as representing music , its as alien to our ability of hearing, as you can possibly get.
To show this on the left in the first image is a graphical display of a piece of music, and on the right a square wave generated at 20 hz
Testing with music, Yes always valid, as it reveals the relationship of the musician and equipment to preserve the discussion topic - timing
in direct relationship with our hearing ability
As example the next image shows a square wave at 1000 hz and 17000, can the reader see any difference from 20 hz to 17000 hz ?
yet these same range of frequencies are seen contained in the graphical display of music.
Your assertion is as I understand that i test with a dual trace oscilloscope using a frequency generator providing a square wave to see any deviation with a square wave generated and then following
is that right ?
To further explain how alien graphical displays are, can anyone identify the artists playing in the music... ? and no cheating looking up the title Crawl Space
and ask yourself can you see the interplay between musicians, the acoustic of the drum sound, the reverberation of the trumpet and is the topic timing revealed
that makes the music so special to hear ?