^^^^^^^^^ I think what Chris is trying to say
is that the speed of sound travels slower than the sound thru the wires to the FOH mix (soundboard) if you are further back then say 25 feet (right now I am not remembering the milliseconds)
but if you run mics from further than 25 -30 feet away from the source and mix it with the board you need to apply a delay to the board feed
either with a specified delay time
or
it is possible for you to align the waves forms in a four track situation
you'll need to physically move the Soundboard feed forward in time so the waveforms line up exactly, this can be done if you zoom in while the 2 track of the soundboard are selected physically drag them to the right- or forward in time, and match the waves.
btw - I have not listened to the new "matrix" samples, but I saw you were like 45 feet back- which would cause a horrible delay fromt eh stage sound to where the mics in the audience are
one easy to avoid this is to place the mics on stage, or at the stage lip, you'll avoid that horrid delay - I think sound travels at 300 feet per second (I'm sure someone will correct me), but thru the wire it's "instant" or at least much lees of a delay.
phasing usually refers to when sound waves line up on th e opposite -= causing cancellation, which is not really what would be happening if the mics were 45' from stage, you'd be hearing one source first (the soundboard) and then you'd hear the mics just a few milliseconds after it causing a boomy echo like sound.
make sense?
hopefully
-- Ian