- Sep 27, 2019
- Southern California
Thank you so much for bringing up the importance of masking on the audibility of distortion - this point is completely lost when looking at measurements in a vacuum.First of all, HD measurements are not completely useless...
If we focus only on harmonic distortion, then we can give a theoretical lowest listening threshold given by masking.
The masking limits are mean values and can be individual different.
So we are not asking how harmonic distortion affecting the sound (which has not really been clarified), but below which threshold we can exclude that they affect the sound.
Any speaker whose HD is (well) below the masking curve is virtually perfect (in terms of HD) and produces no audible HD.