Module five of Pro Audio Workshop: Seeing Sound is all about
crossover alignment and crossover alignment could be a spatial crossover
so where two speakers are meeting at equal level, so maybe you've got your
main and your front fill or your main and your main or your main in your delay
or your relay and you realize things like that so that's actually a point in
space or maybe you have a spectral crossover that uses a spectral divide so
maybe you have your main which covers you know the top end of the frequency
spectrum and then you have your sub which covers the bottom end or maybe you
know your mid frequency driver and your high friction driver within a cabinet so
that would be a spectral crossover so in this first lesson here I'm basically
just going to describe the difference between polarity and phase so I know
these get confused a lot and I just don't want you guys to ever say phase
reversal anymore no I'm just kidding that's not the most
important thing just understanding the difference between polarity and phase
some rules of thumb to avoid wind delay setting I've tried a lot of things in
the past that have not worked and I want to tell you what those are lesson 5.1 is
how to find spacial crossover points and this could be a simple process of just
picking up your microphone and moving it until you find where two sources arrive
at equal level and then you have to set the time or something like that
but we can also look at our designs and there's a process for estimating those
locations so when we get in the field and we don't just have to you know spend
half an hour moving our microphone around we can look at our design and say
okay it should be about here let's just verify that sending a special cross over
with our eyes so this is using laser distance measure
sending a spatial cross over with our ears so this could be potentially using
something like a click track or a metronome trying to find and align the
delay times between two different speakers are two different sources and
then we do the same thing with our analyzer one of the easiest things to do
with our analyzer the hard thing is really finding the right measurement
position all right now when we're going to get into the spectral crossover and
first we need to decide what is the spectral crossover point we're going to
use and then from there we'll have a spectral crossover region and that's
where you know one driver hands off coverage to the other driver and the
main says all right sub you take over from here can would do the same thing
with our ears can we just listen to maybe a sine wave or a warble test tone
and set the delay between our main and our subs just by listening to it and
then in this next lesson we're gonna do the same thing but with our analyzer add
some extra content here because this can get kind of complicated
and then the last lesson is subs on an ox will it ruin us will it ruin our show
how do we set that up properly and these are all the lessons in module 5 and it's
the most important stuff I know about to help you set your spatial and your
spectral crossovers so you know your how you set the timing for a delay speaker
and how you set the delay between your main and your sub so that when that kick
hits it's gonna be really strong and powerful oh I forgot there's one more
lesson and it's all about what to do for show time so not only can we use our
measurement system our audio analyzer for system setup and sound check but we
can keep measuring throughout the entire show and I talked about the process to
make sure that you have actionable data and then how to know what to do if
things change during the show people are often asking what could potentially
change in the sound system when the room fills up with people what if the
temperature changes what if humidity changes so that's what we cover in this
lesson and then this is the final lesson where you'll schedule your last call
with me I forgot I didn't mention the other modules but in module 1 and module
3 there is a link to schedule call with me this is where we're going to check in
so we're at the end of the course here you'll schedule your last call with me
and this is also where you're going to get your certificate that then if you
want you can add to your website to your email signature to your LinkedIn to all
your social media profiles because not a lot of people make it all the way to the
end of this course I just want to recognize you for completing the course
and I want to get making sure that you get a certificate and you have something
to show off because I think it's really an amazing achievement to complete a
course something of this magnitude okay this isn't something you can just get
done in one day and you're going out into the world and attempting to
actually integrate it into your work that's the behind-the-scenes look at
priority or sub scene sound if you have any questions about this still trying to
decide if maybe it's the right choice for you feel free
to reach out to me Nathan at sound design live.com otherwise I'll see you
on the inside
sound design