Cool hi-hat isolation trick (?)

[LBTM]

The Sennheiser would be easier to place under the hi-hat (even at an angle) and easier to cover the behind of it to minimize bleeding.

Doesn't anybody have one to make some comparison clips?

 

[LBTM]

This could actually work with a large diaphragm mic.

 

[LBTM]

Here is a test I did.

I generated a random tone, recorded a clip with the null of the mic facing the speaker, a second clip putting foam in between and a third clip putting the foam and my hand.

You can see there's a 9dB reduction between the first and the last clip.

Thoughts?

 

[Brett - K A L I S I A]

I'd be worried that the foam inside the microphone would take away some "air" (or room) from the capsule which would also change the polar pattern of it (someone mentioned cupping).

 

[LBTM]

The foam should be outside the capsule, so it is duct tape (to the rear of the e606 or of a condenser - for a little bit of rejection) -> foam -> duct tape (to hold the foam).

Brett, could you please do a test with this setup?
I would but I don't have a band to record for the next two weeks and don't a drum kit on the studio. arghhhh

 

[The StabbinCabin]

I'm curious to hear this as well. I feel like there would be some sort of weird sound if air wasn't allowed to pass though or something.

 

[LBTM]

I feel like there would be some sort of weird sound if air wasn't allowed to pass though or something.

air still can pass through the front of the mic and also the mic isn't the source of the sound. i'm not sure but can you elaborate? how this can fail?

edit: think it as a sm57. there's no rear for the air to pass through.

 

[egan.]

air still can pass through the front of the mic and also the mic isn't the source of the sound. i'm not sure but can you elaborate? how this can fail?

edit: think it as a sm57. there's no rear for the air to pass through.

If you close the back of the mic you change the polar pattern. The 57 is a different design but if you block the vents at the bottom of the capsule you're causing similar havoc.

 

[LBTM]

If you close the back of the mic you change the polar pattern. The 57 is a different design but if you block the vents at the bottom of the capsule you're causing similar havoc.

interesting. i hadn't though about that. so, how do multi-patter mics work?

 

[egan.]

Electronically it is accomplished by using two capsules and summing them differently for each pattern but that's an entirely different subject.

 

[Trevoire520]

interesting. i hadn't though about that. so, how do multi-patter mics work?

Multipattern mic's are just mixing together different combinations of omni and figure 8 capsules.

 

[AudioGeekZine]

putting tape or anything on a mic in an attempt to reduce bleed is more likely to actually change the pattern to omni.

Put something hard near the mic and you'll get comb filtering.

 

[LBTM]

change the pattern to omni..

but the rear will be covered. how can this turn into an omni?

 

[AudioGeekZine]

The back of the mic is open to allow a slightly delayed signal hit the rear of the diaphragm. That's what creates the polar pattern.

in a pencil condenser, most of the capsules will have vents below the diaphragm, but the omni ones will be completely solid with just the front opening.

 

[egan.]

 

[Uros]

Schoeps ^^