It seems generally agreed that minimum phase anomalies below the transition zone can be successfully equalised .
Above the transition zone equalisation is it said to be inappropriate because , unlike a microphone, we can hear that the total sound is made up off sound arriving at different times and from different directions including directly from the loudspeaker . That is we can distinguish between the direct sound and reflected sounds .
Equalising the room response in total means we mess up the direct sound which is not what we want to do .
When we equalise below transition we alter the sound coming from the loudspeaker but it seems this isnt a problem because at these frequencies we can't separate the speakers direct sound from the speaker plus room sound.
If this is correct why is it so ?
I recall the same explanation from Geddes as FranzM posted above but it seems this isnt the correct explanation ?
Does this mean in effect that below transition there is no direct sound ? ( Or there is only direct sound ).
A reason some people give for not liking any room equalisation is that ,even at bass frequencies, it messes up the direct sound which they believe they can hear as seperate from the room sound . Does this view have any validity ?
Dr Tooles book seems to say that above transition we can listen through the room and hear the direct sound of the loudspeaker but below transition the speaker cant be separated from the room. I am trying to understand why would be so ?
If
@Floyd Toole or anyone else can shed light on this that would be good.
Thanks