Holeport - new shape of soundport

[hyenik]

I like soundports and try to make it a bit more visually interesting, than only simply hole

[fitness1]

That's pretty cool - I've done some multi hole ports as well - they are pretty effective if you keep them small as you did. Is that a Lakewood M14?

[Bax Burgess]

hyenik, why did you put strings on your hookah?

[Rosewood99]

I had a couple of guitars I wanted to do some soundports but was too afraid of messing up the finish.

[wisedennis]

Its cool, and it inspires me to think of:

https://en.m.wikipedia.org/wiki/Trypophobia

How does it sound like?

[stormin1155]

A customer wanted the Fishman system removed and a LR Baggs system installed in his Breedlove, but what to do with the nasty square hole in the side?

[hyenik]

Originally Posted by fitness1

That's pretty cool - I've done some multi hole ports as well - they are pretty effective if you keep them small as you did. Is that a Lakewood M14?

thanks, it is EKO Evo Baritone

[hyenik]

Originally Posted by Bax Burgess

hyenik, why did you put strings on your hookah?

Originally Posted by wisedennis

Its cool, and it inspires me to think of:
https://en.m.wikipedia.org/wiki/Trypophobia
How does it sound like?

hookah & trypophobia, nice points, thanks
I like to inspire in nature, next will be "gillport"
https://en.wikipedia.org/wiki/Gill

Sounds like soundport, better hearing of your sound

[fitness1]

For some reason, when you said gillport, it reminded me of this one (that you may or may not have seen)

Alhambra Pepe Toldo model.

[hyenik]

Exactly!
This was my inspiration.
I only can´t do it so thin ribs on already finished guitar.
This nice gill, must be done during construction.

[mc1]

Originally Posted by hyenik

I like soundports and try to make it a bit more visually interesting, than only simply hole.

Is there any science to the size, number and placement of the holes, or what part of the bout is used? Or is it basically aesthetics?

I like this design. I think it would also look nice with the outer holes that run parallel with the binding to be just slightly smaller than the middle row, so that the size sort of radiates from the middle.

[mc1]

Originally Posted by fitness1

For some reason, when you said gillport, it reminded me of this one (that you may or may not have seen)

Alhambra Pepe Toldo model.

That's neat - they should do it all the way around.

[mc1]

Originally Posted by wisedennis

Its cool, and it inspires me to think of:

https://en.m.wikipedia.org/wiki/Trypophobia

Trypophobia: an aversion to the sight of irregular patterns or clusters of small holes or bumps.

So I was like that's an odd thing to be averse to, as I find patterns such this to be pleasing.

Then I saw the picture on the wikipedia site, and was definitely averse. C'mon, that's kinda freaky. Maybe because it looks like so many eyes looking everywhere. The irregularity of it.

[Alan Carruth]

mc1 asked:
"Is there any science to the size, number and placement of the holes, or what part of the bout is used? Or is it basically aesthetics?"

There is some science, but since guitars are complicated beasts it's not as exact as you might like. I have lots of data on various 'port' experiments I've done, over a number of years. The conclusions I've reached are:
1) opening a 'port' in the side will raise the pitch of the 'main air' resonance,
2) the larger the port and the further it is from the 'main' sound hole, the greater the change,
3) the port will also put out some high frequency sound that would not normally be going in that direction,
4) the port will change the sound the player hears if they can see it, and
5) it may or may not change the sound the audience hears in a noticeable way.

I would expect that a port made up of slots or holes would make less of the change in the 'main air' resonance that one with the same overall area in the same spot, due to the drag on the air flow through the port by all of the edges. The high frequencies may not be affected as much.

From what I've been able to measure, a port the player can see can act as a 'monitor', and will tend to be especially useful in large, noisy, or dead rooms (a restaurant gig). Players with hearing loss find them useful as well. The sound coming from the port will not be the same as the sound coming off the top or out of the main hole.

[mc1]

Originally Posted by Alan Carruth

Alan Carruth wrote [...a bunch of interesting stuff...]...

That's interesting how the sound from the soundport may not match the out front sound. Maybe time for a mini-soundport mic.

And I'm willing to hazard a guess that as you add an array of fairly close holes, the effect gets more and more like one large hole.