Topic: diy mini-mic setup

[boa]

at this point, I'm curious about your spreader.
How are you keeping the bars truly horizontal? I'm assuming that it is a single pivot point at the anchor bolt, which would tend to make it want to sag. Am I missing something? How are you keeping both halves matching on a horizontal plane?

With the weight of the mics, clips and cable being negligable on the 406x series, I did not think to add reinforcement to the anchor bolt to keep the two antennae matching on the horizontal plane; my own tests are relying on the pivot point to stay tight and thus keeping the halves straight. I think I'll try to add a bar to help that and take the stress of the anchor bolt. I've got another in progress so I'll try something different with that one.

I appreciate the feedback on the jdisc; I am going to try some different rubber mounts to achieve the 180 degree focus. I'll post any updates.

[Todd R]

Very cool, boa, good job! 

Personally, I've never heard that the mics need to be oriented 180* apart for a j-disk.  And every picture I've ever seen of a j-disk always has them pointed more or less forward, not off to the sides.  Theoretically, it should not matter at all, since omnis should be omni-directional, so orientation shouldn't matter.  In practice, most omni mics tend to get directional at high frequencies.  But if I were concerned at all, I'd want my mics pointed more or less forward so that the directionality of the mics at high frequencies would be on-axis with the sound source, not on axis with the side wall reflections.

Some links on j-disks:

http://www.josephson.com/tn5.html

http://www.mhsoft.nl/MicTips.asp


Anyone have links/sources discussing the need for the 180* orientation? 

[Todd R]

Gotcha, thanks Mike.  That makes sense.  Well, sortof -- now I've got to say, wow, I had no idea the 406x series were side addressed mics, not axial.  Thanks for the tip, now I'll know which direction to yell into Tim's new mics.

[Tim]

careful or I'll start throwing hipchecks old man

[pfife]

+T

[ScottT]

+T for DIY

and another +T in 12 for the "sauce au fromage pour nachos" pic in your third post 

[Tim]

so I'm going to build one of these jdisc/baffles today and was wondering, since I have never even seen a 4061 upclose, what the best way to affix the mics to the disc will be? I would like to maintain the ability to adjust the distance the caps are from the baffle. I'm assuming that no matter how far out from the baffle the mics are I would always want them to be basically centered in the middle of the disc, is this correct?

thanks guys!

[Tim]

thanks Moke...

[Tim]

boa - any idea what type/model pop screen that is? I've had a tough time finding one with a mic mount, everyone I've found has gooseneck and clamp

[boa]

boa - any idea what type/model pop screen that is? I've had a tough time finding one with a mic mount, everyone I've found has gooseneck and clamp

Not sure exactly - got it at Guitar Center but I also saw the same at Pro Audio on Manchester in Maplewood. It comes with a clamp and a flexible extension. I'll see if I still have the packaging.

[Tim]

Tim,

Embroidery Loops,..... This is a cheap and readily available frame, though it would take some tweaking to get it to mount. i think it would be an easy enough tweak to get it to mount though.

yeah I was thinking of going that direction but couldn't come up with a good way to attach that hoop to a stand. I don't have a work bench or any power tools....

hmmmmmmmm

[Tim]

ahhhhh

good thinking...

thanks for all of your help... much appreciated

[Tim]

just got back from the craft store

ended up getting an 8" embroidery ring, it's made of heavy yellow plastic

I bought two 8" foam "wheels" to go inside the ring, one is 1" thick and the other is 2" thick.... I think I'm going to use the 1" though for now

I picked up some heavy black felt squares and I'm in the process of glueing them to the foam using Liquid Nails

this is the easy part... I'm going to grab a cheapo mic clip later and try to dissect it for a mic mount later (good idea moke)

[Tim]

not sure what you mean

[Tim]

yes, LOTS of different sizes... the people at the store were no help at all

I had a 7inch wooden hoop but I couldn't find any 7inch foam so I went with the heavier duty 8inch plastic hoop. It's bright yellow but my other options were pink and purple

I think I caught a buzz from the Liquid Nails