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 Velleman MK136 Super Stereo Ear kit

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Kuu


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Velleman MK136 Super Stereo Ear kit
« on: Jul 15, 2014, 11:31 AM »
Similar to my thread on the Voice Modulator kit, what about this kit for helmet sound amplification? I just bought one on clearance locally.

Seems to me by putting the microphones on a longer wire instead of directly mounting them to the board you could rig this up nicely. Anyone built one before? How does it sound?

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #1 on: Jul 16, 2014, 03:02 AM »
It's practically the same used by mynocks den, but on a single board ;

mynocks den tutorial ;

http://mynocksden.com/projects/stormtrooper-helmet-upgrade/environment-amplification.html

I do think however that our Glorious Leader, Mandalore used this kit for his bucket.

Mandalore the Uniter


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Re: Velleman MK136 Super Stereo Ear kit
« Reply #2 on: Jul 23, 2014, 10:29 AM »
Actually, I built my own using scavenged components and a purchased pre-etched audio amp board.  :)

However I am working on a new version for the MKVI kit using the following parts:

1) 2, Amplified & adjustable gain microphones: https://www.adafruit.com/products/1063

2) 1,3.7W stereo amp: https://www.adafruit.com/products/987

3) 2, Bone conductor transducer: https://www.adafruit.com/products/1674

$40 in parts will build a very powerful external audio kit that uses transducers to turn your skull into the actual speakers, instead of needing speakers.  This way nobody can ever hear the external audio inside your bucket, and you don't risk causing a feedback loop with your voice amp's mic picking itself up in the external audio.  The mics are also pre-amplified and filtered before getting to the stereo amp, which gives you a much cleaner audio.   :)

Here's a youtube of how the induction transducer works.
https://www.youtube.com/watch?v=IS2uS_aWTHw

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Kuu


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Re: Velleman MK136 Super Stereo Ear kit
« Reply #3 on: Jul 23, 2014, 11:19 AM »
When you've got that on a breadboard, any chance of a pic?  :D

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #4 on: Jul 23, 2014, 01:04 PM »
Mandalore; if you get that together, let us know if this works as it theoretically should :)

Wondering how you will incorporate the bluetooth into this :)

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #5 on: Jul 23, 2014, 01:14 PM »
When you've got that on a breadboard, any chance of a pic?  :D

Sure!

Mandalore; if you get that together, let us know if this works as it theoretically should :)

Wondering how you will incorporate the bluetooth into this :)

I am planning to wire a bluetooth headset/mic into the system so I can sync with my Galaxy, much like my current rig.  That'll be the easy part though.   ;D

The hard part is going to be designing all the enclosures for the helmet circuitry, so I can 3D print them in the armory.  Everything has to fit just right for these transducers to work properly.

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #6 on: Jul 24, 2014, 05:33 AM »
Do your microphones share the same coin cell or a coin cell for each?

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #7 on: Jul 24, 2014, 04:19 PM »
Do your microphones share the same coin cell or a coin cell for each?

No, they'll each need to be powered separately. My current system in the MK5 uses 2 rechargeable triple A batters to power each side.  I only have to recharge them once a year since that system uses low-fi speakers (which require very little power).   

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Kuu


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Re: Velleman MK136 Super Stereo Ear kit
« Reply #8 on: Aug 06, 2014, 12:49 PM »
So... something I was thinking about as I was looking into home-make Sugru for covering the transducer...

What if Bo-Katan's head thingy was actually her audio setup, i.e. tight enough to push the bone conducting transducers up against her temporal bone (the frontmost area of the bone)?

Bo-Katan_KryzeHS by matt_ragan, on Flickr

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| aka "Matt R." | Helpful Stuff |Facebook | VRCA #053 | M.V.S. #10 | B.E.A.R.D.S. #77 | S.P.A.R.C.K. #2 | OM: Sept. 20, 2014

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #9 on: Aug 12, 2014, 07:57 AM »
The transducers can touch any part of your skull and work, it doesn't necessarily have to be at the ear bones.  I'm probably going to create an enclosure that pushes them against my forehead.

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Kuu


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Re: Velleman MK136 Super Stereo Ear kit
« Reply #10 on: Aug 16, 2014, 07:01 PM »
I built the basic kit with some wire to the microphones, the thing works great. Super loud (or could be, easily).  :laugh:

Helm electronics by matt_ragan, on Flickr


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| aka "Matt R." | Helpful Stuff |Facebook | VRCA #053 | M.V.S. #10 | B.E.A.R.D.S. #77 | S.P.A.R.C.K. #2 | OM: Sept. 20, 2014

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #11 on: Nov 08, 2014, 01:11 AM »
Additional info, my wife Jaelie got an Uproar  and after doing side by side comparisons, unless you get the Velleman kit on sale or at a crazy discount, the Uproar is better bang for your buck and time.

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| aka "Matt R." | Helpful Stuff |Facebook | VRCA #053 | M.V.S. #10 | B.E.A.R.D.S. #77 | S.P.A.R.C.K. #2 | OM: Sept. 20, 2014
Re: Velleman MK136 Super Stereo Ear kit
« Reply #12 on: Nov 08, 2014, 07:33 AM »
Additional info, my wife Jaelie got an Uproar  and after doing side by side comparisons, unless you get the Velleman kit on sale or at a crazy discount, the Uproar is better bang for your buck and time.

Funnily enough I picked a velleman up last week for pretty cheap. Not had a chance to build it yet though.

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #13 on: Jun 16, 2015, 11:50 PM »
seeing your board has helped me figure out what I need to do when I get mine. Thank you.

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Re: Velleman MK136 Super Stereo Ear kit
« Reply #14 on: Jun 19, 2015, 12:35 AM »
I am wondering. Did our great Mandalore every get that set up to work? I am still putting my bucket together and I am contemplating making a transducer like that one. Or has anyone else used a set up like that?

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