that's not all
this polarity Adventure doesn't end
there
let's say we have a base rig let's put
um
svt
don't put that sweetie it's right there
then we'll put a mic on it
wire it into something and we'll put a
wedge
over here
and we'll run the base into the veggies
pumping out of there um does polarity
matter for this mic or for this di box
it's coming out the back absolutely
if this is in polarity with that when
the bass player stands right in the
middle we will have a happy bass player
if these are out of polarity then one of
them's going the wrong way you will
actually get a dead spot midway between
the wedge and the bass if they were both
of the same volume obviously or
typically a wedge is not at the same
volume as your bass amp but it will
cause a drop out in level at the
equidistant point between the two how do
you test that oh pretty simple you turn
the bass rig down turn the wedge up so
they're about the same level
and once both in both are in at the same
level you have someone or preferably you
stand right in the middle and you look
at the have someone back by the monitor
board and how them hit the polarity
switch point is all up in polarity when
you point your thumb down have him
switch it listen for which one's louder
when you hear the louder sound
run with that one and you will have a
solvent polarity issue now di boxes can
be either way as well so and microphones
are not guaranteed I'll be pin 2 or pin
3 plus you will find abnormality
aberrations and microphones and perfect
will you test sell your mic to make sure
they're all positive pressure equals
positive voltage on pin 2
with guitar wedges not as important and
much more difficult to test so usually
what I'll do is I'll determinate off the
base mic once I know what the base mic
does with the base wedge I will then
apply that same thing to the guitar rigs
and the rest of the state continuing on
with the adventures in polarity it
doesn't simply do the kick drum we did
the bass guitar
what about
happy singer dude
who also
winners
and in your system
and we got a microphone here
polarity of the inner system is also
relevant and important
although it may not seem so at first
glance the when you sing when you talk
you hear your voice from two different
angles you hear it from leaving your
mouth coming around and coming into your
ears from the sound of the room and you
also hear it internally the natural
vibration of your body and the resonance
which creates this tone of your voice
when
you're singing in the air is in a rock
stage unless it's insanely loud or maybe
even if it is out that you're relying
you don't you've cut out the room sound
you don't hear the sound of your voice
going out but you have not cut out the
internal resonance of the sound of your
voice in your body
when the sound leaves your mouth and
enters that microphone
travels through it's analog or digital
path typically it won't see more than a
millisecond or two of delay
the low frequencies a millisecond to the
lower frequencies of your voice is not
overly significant and still
to delay it so much that polarity become
zero
so because of that
if the mic is in polarity when you sing
and your ears are in you'll get an
extension of low in the summation of the
low end you're hearing from your ears
with the natural resonance your body
here with outer polarity you'll get a
cancellation of what you're hearing your
ears with the natural resonance of your
body that only affects a person hearing
themselves saying polarity has no effect
on let's say my voice into somebody
else's in ears or somebody else's
seniors into mine so it's only on the
person singing listening to themselves
say so in order to test that the only
way what a hideous way to test it is to
put in yours in to go up to the mic have
your own voice run to those in ears and
again you balance level you turn them up
until the natural resonance of your
voice is about the same volume as the
sound you're getting in your in ears and
you look for a summation and again you
look at somebody running the monitor boy
thumbs-up thumbs-down polarity switch in
polarity out of clarity you clip back
forth until you hear a preferable
summation assuming you can hear that now
you're going to find that with an
analogue board that is going to be much
more discernible than with a digital
board there's an analog board even
though the Bell perhaps are Wireless
it's almost instantaneous there is less
than I don't know several
significantly less than a millisecond of
delay maybe even less than a microsecond
of Blades instantaneous the sound coming
out of the out of your voice it takes
longer from it to leave your lips to get
to the microphone than it takes to get
from the microphone all the way around
and back in your views again so you can
get perfect summation of those tones
within digital system you're gonna get
about
1.5 to 2.5
milliseconds
delay from here before he gets back into
there
how does that equate what equates to
about if you want to hear what that
effect is stand two feet
stand about two feet from the wall and
talk and hear your voice reflect the
walls - about 2 feet - Millis at 2.5
milliseconds you want to check one
millisecond then go to about a foot away
from the wall and you can actually hear
just holding your hands up
that time delay will it's it's inherent
to a digital console or individual
systems
that summation differential is very
noticeable some engine some band members
some artists and not to others it's
quite audible though if you compare the
two I'll get into that on another thing
in any case
polarity does apply to any air systems
it can be tested relatively easily and
alright I should do it hope all that
helps and I'll try and do some more
videos
on sound stuff