mind sharing some data?
rta's can measure frequency and amplitude contents of music right?
i am interested to know if there are music that actually contains
ultrasonics or even infrasonics....
or could the recording process clipped those?
I wish I could.
Yup they do, you can have frequency vs amplitude plotted across the test bandwidth.
Actually the term used in loosing the ends of the spectrum is not clipping but rather compression. The recording industry has been plagued by this problem even with vinyls and magnetic tapes, CDs on the other hand were considered breakthroughs in terms of bandwidth.
FYI, yes there are music program materials that contains Us and Is, if you're really that interested, please checkout CDs from Telarc.