wrote


So there can be no mistake here is the reason for listener training.

1.2.2 PCABX provides formal listener training based on relevant
listening challenges of increasing difficulty, such as is provided at
http://www.pcabx.com/training/index.htm .



What do I do ? I downloaded some tones
and they all went tooiiinnggg toooiinnngg tooooiiinnnggg

booiinnggg ..... boooiiinggg .... boooiiinnggg

And then another page is asking if I want to make
donation to paypal.




The **** is thattt ?


These challenges
simultaneously educate, test and self-qualify the listener and his
listening equipment. The goal of this training is the production of
"Severe Listeners" who reliably detect large, small and subtle audible
differences between audio products.
http://www.pcabx.com/product/index.htm is a list of audio products
currently available for audition at www.pcabx.com.

The fact that other organizations, such as those previously mentioned
use listener training should tell you that it works.
Of course this kind of truth is not something I expect you to
acknowldege.