time alignment

toastyghost wrote: Pasi wrote: Incubus aligned finally? :p It doesn't matter which method one uses, as long as the result is right. I can align system with several different methods and get same results so i don't have to rely on one thing only. It's not what you know, but how you do it ;) Like you wouldn't believe

Just remember that everything is calculated from the Impulse response at the first place

I also use that method to check phase alignment, but my processor lacks a good phase adjustment so all I can do is flip polarity if necessary. 

Just a reminder of what the Iasys unit looks like. This has made life very easy.

I think you could accomplish the goal that way, but it seems difficult compared to just measuring once setting the time delay and then checking it. Also, on my stacks the mid horns would fall off the back of the FLHs because the distance difference is greater than half a meter.

Anyone who says Bob Mcarthy is not absolutely a groundbreaking genius is really misinformed. 

Granted he drinks the Meyer Coolaid a little too much.  But he was a student of Doug Jones whom was a  TEFF pioneer and Heiser student.   Luckily the department chair when I attended college also. 

Impulse alignment without phase alignment can sound fine,  but some of us are here to take it to a higher level.  Make better gains,  and at times,  MUST prove to contractors and accousticians that proper phase and time have been attained.

Personally I use impulse response to get in the right ballpark for time alignment, ie within half a wavelength then I look at the phase slopes to fine tune.  Looking at phase alone you could end up being a whole cycle (or more) out and at low frequencies I don't find impulse reponses clear enough.

I'm sure there are various valid methods depending on what measurement equipment you have available.