Captain Intrigue here.
In this episode i'll be showing you how to build super hearing.
And i heard that by the way.
So what do i mean by super hearing?
Well soon i'll be building a superhero helmet and my ears are actually going to be covered
so i'm going to need some kind of electronic form of hearing.
So my plan is to attach two condenser microphones to the side of a headset, like this, the one
that i used for the voice changer in the last episode.
Those microphones will amplify the sound 50 times and then it will be fed into earbud
style headphones like this and that will in effect give me super amplified hearing.
In my last suit i designed and built my own sound amplifier circuit and it actually worked
great, but this time i wanted to try something a little different so i went with a commercially
available sound amplifier kit to see if it was any better.
And this one from Velleman is actually a little more sensitive than the one i built so i'm
going to be using it for the super hearing amplifier in this build.
So the first step is to build the circuit board and then once i know it's exact dimensions
then i can design an enclosure for it.
Now i need to insert all the components into the circuit board, the directions with this
kit were actually pretty good so everything went together smoothly.
If you're inexperienced with building a kit like this the best way to start is to first
organize the parts into groups of identical parts, it's also good to install all the resistors
first followed by the capacitors then the rest of the components.
If you get confused about the identification about certain parts you can just skip it and
come back to it later, just try to use the process of elimination to figure out which
part is which if you're not sure.
So at this point all the components are installed and the leads bent over so everything's ready
to be soldered.
The way i like to solder a board is to start with the points that are most easy to reach
with your soldering iron and just solder a few joints and clip the leads and move on
to the next group of joints that are easy to reach.
This way you're not struggling to get the soldering iron into a tight space where you
could easily make a mistake.
All the components are soldered so now i can hook up the power wires and the wires that
will connect the 2 condenser microphones.
The circuit board is now complete so let's look at some CAD.
Here's the design i've come up with.
This is the enclosure for the circuit board, and inside i have two tabs that allow me to
mount it to the enclosure here and here.
Here's the lid, it will screw in from the sides here and here, and that secures the
lid into place.
These 2 clips will attach the microphones to the headset.
The microphones will fit inside these holes and there's a small edge there to prevent
them from falling out.
On the back i have these clips that screw on to sandwich the headset in between these
parts that will actually hold it in place.
So now let's start 3d printing the parts.
The 3d printer i use is a Makergear M2 and the people at Makergear saw that i had 3d
printed my entire superhero suit on one of their printers so they were kind enough to
send me one of their newest Makergear M2 3d printers to test out which is awesome because
now i can print parts twice as fast and have a backup if one printer is down for maintenance.
When 3d printing, if the build platform isn't perfectly level then your parts won't ever
print right.
So in this new Makergear M2 it has a unique type of auto bed leveling app that takes the
headache out of leveling the build platform and it allows you to get the bed perfectly
level every time which pretty much means no print failures.
I originally chose the Makergear M2 because from all the reviews that i had read they
actually had the best customer feedback, in fact it's one of the only 3d printers that
has nearly perfect feedback rating on Amazon, so i'm including a link in the video description
if you're interested or you can also find them in stock on Amazon.
Alright so here is the case with the lid, and here is the circuit board assembled and
ready to go and i've just got an extra headphone jack which i'm going to use to connect the
headset left and right ear microphones into this and it's just going to mount through
here.
So the first thing i need to do is wire in this jack.
So i always like to tie a knot in the wires that comes through the casing so that if you're
accidentally pulling on the wire the knot will catch on the hole and not rip the wires
out of the circuit board.
Here's the board, here's the case, it goes in like that.
Okay, then i'm going to mount the headphone jack through this hole, put the nut on it.
Okay and that's it, i'm just going to go back and label these two jacks so that i don't
get confused, and this is the power wire right here.
Alright so here it is, this is the volume control, got a power switch here, this is
the ear mics, ear buds.
Okay so these are the parts for the headset.
This is the voice changer headset, these are the 2 microphones, and these are the two clips
that i 3d printed.
They're going to go on each side and the microphones are going to mount in there, and then i'm
going to wire this connector up, it's a stereo headphone connector.
I'll wire that into the microphones so i can plug that into the amplifier.
So now i'm going to put this all together.
Here i'm wiring up one of the microphones.
I'm feeding the wire through the clip and inserting the microphone into it.
And then i start taping the wire up along the top of the headset.
Then i feed the wire through the clip from the other side, tape it up good, and solder
the next microphone.
And then i feed that microphone into the other clip for the other ear.
And then pull all the wires through, and then the next step is to solder the headset jack.
Here i'm connecting all the wires together and soldering them to the headphone jack.
And then i taped it really well and put a couple of tie wraps around it so that it's
strain relieves the cable so if you pull on the cable it's not going to disconnect the
wires at all.
So the microphones are installed in the clips here and here.
This is the microphone jack that goes to the voice changer from the last video and this
is the stereo microphone jack from the left and right super hearing microphones.
The ear buds can now be attached, i just taped it on both sides so that it fits my head properly.
Then i taped the excess ear bud wires to the headset.
Alright so since i've got 3 different cables coming out of this headset i labeled everything
on the end.
The voice microphone, this is the ear mics left and right, and this is the ear buds.
that go in your ears.
That's the entire headset put together now, and this is the end of it and it's going to
plug into the amplifier enclosure.
Okay, super hearing is all finished and it's powered on, right now i'm powering it from
this small battery pack and here's the little amplifier module, and then the headset.
You can see the microphone here and here and the ear buds here and here.
This thing is amazing by the way.
I can hear sounds that i would never be able to hear normally.
It's so sensitive just the movement of your clothing you can hear, it's amazing.
So this is going to definitely be installed in my suit and incorporated into the upcoming
helmet build.
Another possible abduction in the area?
What are authorities not telling us?
I'm Sara Caron and i'll share my report at 5 on action news.
Bye Katie.
Goodnight guys.
Let her go....NOW!
Who are you?
I'm Captain Intrigue.
I can help you Katie.
Who are you?
I'm Captain Intrigue.
I can help you Katie.
A disturbance reported Saturday night is believed
to involve a person of interest related to an abduction case from September.
Police received a 911 call from a witness who reported seeing a bright burst of flames
in the sky on Friday night and a man dressed in blue.
Anyone with information should contact the authorities immediately.