AES Video "What Does 'Accurate' Even Mean? with James D. "jj" Johnston
Interesting video. Possibly of interest.
"jj typically gives his home AES Section an annual discussion, this year being on the thought provoking usage of some terms regarding audio accuracy. Some of his concepts, in a nutshell:
• Accuracy of an audio signal that goes through any wire, any active or passive circuitry, any ADC/DAC is relatively easy to thoroughly measure for accuracy. It is easy because we have the source to directly compare it to.
• We can say with a great deal of confidence that there are thresholds of accuracy in these signals where we can claim audible transparency.
• Speaker/rooms are not so easy to measure for accuracy. They are impossible to compare to an original acoustic event like a classical concert for accuracy. These things are difficult to measure because of lack of direct access to the source for direct comparison. Speakers and rooms have to be considered as a system. The ideal design for one depends on the other.
• Many audiophiles and engineers fail to pay proper attention to the issues of head transfer functions and head movement. The advancement of audio will need to address head transfer function and head movement.
• Preferences are inarguable. Stop arguing with people about what they like and stop demeaning them for it."
