Daily Archives: February 16, 2016


Rule 3 explained? (Some tips)

How does Rule 1 differ to Rule 3 in masking?   We know that Rule 3 is only needed when Rule 1 has not been carried out and that both involve air conduction masking. But why?   Masking is carried out when there is a difference of 40dB between cochleae when using headphones. When we look at Rule 1 the difference between the two cochleae are obvious:   We mask the air conduction, and find the following:   Rule 1 was carried out at all the frequencies as there was a difference of >40 dB ¬†at all the frequencies between […]