I'm thinking of using straight sections (say 3 feet) of PVC pipe in a horn early were the taper looks kind of straight. This would be to simplify the process of making the horn long, which I'd like to do.
Would I be better building a shorter, better optimised horn or is this at all beneficial?
Would I be better building a shorter, better optimised horn or is this at all beneficial?
Thanks, GM.
Then could I reason that a given diameter of pipe could be used for a section provided that the CSA was within a percentage of the target? Such as 20 percent, perhaps?
Then could I reason that a given diameter of pipe could be used for a section provided that the CSA was within a percentage of the target? Such as 20 percent, perhaps?
Annnyway 🙂, I've been looking at the tapped horn as an alternative. It's my first, thoughts are welcomed.
Tapped horn post
Tapped horn post
jnb said:
You're welcome! Not really, less is always less when it comes to horn design in that what makes it work is the constant expansion, i.e. a resistance when the signal is in rarefaction, so a straight pipe is like running place, you get a lot of pumping action, but not much gain for the effort.
That said, approximating a low flare frequency hyperbolic using simple conic sections every half octave of axial length works good enough, making it easier to lay out/fold/build.
GM
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