Today I just wanted to share with you some of the updates I've been
making to Pro: Audio Workshop: Seeing Sound over the last few months. So first of all
the course it's this whole page online audio
engineering courses.com now has a navigation bar. Pretty simple thing but I
used to think that it didn't need it before and then several students told me
that it did so I added one I'm not a web programmer so it took me a little bit of
time to figure it out but there it is and I agree it's love it's very helpful
to just have some Quick Links up there all the time
so getting into the course updates themselves the first lesson I updated
was less than 2.5 visualising speaker coverage so it used to only cover
basically on axis and off axis and I realized that it needs a little bit more
detail so the course as so this lesson now covers on axis near on X is far off
axis vertical top and vertical bottom and then in the field demo let me see if
there's a diagram here though so this is more clear what I'm talking about so
this is the kind of stuff I'm talking about labels for our speaker coverage so
we can talk about them and know what each other are talking about right so
then I also created a field demo where I do an autopsy of a speaker and the fun
thing was that I set up a camera up above me so that as I'm using the audio
analyzer here you can watch me move around the room and find these points
that I just described so the lesson teaches you about how to label these
points in a speaker's coverage pattern and then how to find them and so you
watch me move around and find those points let me see if I can get to the
end here so here we go so see this yellow line this is kind of the
speaker's covered shape that I was trying to find okay so pretty fun lesson
2.15 the next update is lesson 2.8 and 2.83 these are all about subwoofer
arrays now I used to only have one lesson about subwoofer arrays but I
broke it apart into two so now I have one lesson all about line arrays and one
lesson all about the inline two element gradient subwoofer array so first lesson
2.8 this talks a lot about the effects of line length and the effects of
spacing so what happens when we put two speakers next to each other and then add
more and more and more what happens if we have a really long line of subwoofers
how does that change the coverage shape and then what happens if we put space
between those subs and what's the difference between coupled and uncoupled
now here we go so I answer this question how far apart can you space your subs
and then we do a demo and that looks pretty funny
and I go through a lot of examples of how line length changes the shape I
think that's pretty much it for this lesson so let's go to the next lesson
this one is all about the two element gradient in line subwoofer a fancy name
for a very simple easy to use directional subwoofer array which is why
I use it a lot and why I like to teach it in my course I talk about how to
choose the spacing what that's going to mean for the settings that you use and
then I have a new field demo here where I show you a really common setup that I
use and then I deploy some microphones to show you how to verify that set up so
then a lot of the lesson is actually looking at smart and talking about how
to read these phase traces and do the verification of this array and I also go
over so some problems that might come up when reading these phase traces
especially when there are boundaries nearby it can be really hard to do this
kind of verification if there is a wall or any other reflective surfaces okay
subwoofer arrays the next update was 3.1 and that is horizontal Lane
so over in the aim module 3.1 now the reason I wanted to redo this I basically
add another field example it's just because sometimes it can be so much
easier to show something than to continue to try to explain it so there
are some measurements I do every time I get into the field and it you know here
in this video I think it takes me like 60 seconds to show you but it would have
taken me you know five minutes to try and write it out and explain it
so that's the update to lesson three point one and the last one is an update
to lesson three point two this is all about vertical aim and this one the the
lesson didn't change that much but I just cleaned up the way I explained it
so I think it was kind of confusing the way I explained it in the past and now
in three point two I think it's a lot clearer I explained exactly for what
situations this technique will work and I teach you a technique to estimate the
vertical aim but there are some they're just some situations that are working in
some situations it won't another really important update to lesson three point
two is that then I teach you how to connect this estimation that you come up
with for vertical aim to your clinometer so if you're in the field and you've got
a speaker and you're about to send it up into the air you probably want to put
your kilometer on there oh you can't see my hand put your kilometre on there and
figure out what the angle is gonna be before it goes up in the air a lot of
times it's easier to aim the speaker on the ground then send it up in the air
than it is to send it up in the air then climb up on a ladder or go up on a lift
and put a laser on there so I realize that we need to be able to
know how to do both right and let me just give you a quick demo
here
right so I teach the method for estimating the vertical aim and then
when we get into the field here I talked about how to take those measurements and
basically just use some simple properties of a triangle to then turn
our estimated vertical aim into a clinometer reading that we expect to see
when we put our kilometer on the speaker I want you to know since I stopped on
this screen here that this looks like a lot of numbers and it looks like it
might be confusing but it's actually pretty simple I walk you through it step
by step and I even give you a really simple cheat code at the end in case you
ever forget all of this stuff okay so those are the updates to pro works up
seeing sound let me know if you have any questions about these