How would one use an SPL meter like the digital one put out by Radio Shack? For example, what test CD is best for plotting on a spreadsheet and so forth? What would be the x and y axis of a line graph?
Also, the ATI analog meter featured in Stereophile has the same specs as the RS digital meter but costs $20 more than the RS model. An analog meter seems confusing when the digital will just maintain a memory of measurement and averages. It just seems like something that would keep me busy with my bi-polar disorder and all.