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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: RE: Show me a current monitor posted by hahax@verizon.net on March 28, 2025 at 18:58:20:
So, for 60 years you have known about diffraction so you understand diffraction that's great makes this post easy
Diffraction is what happens when sound waves emitted by a speaker encounter obstacles. So, a speaker's cone is round, and it moves, producing sound waves off the entire surface of the cone in all directions, not just horizontal or vertical just like I already said in a previous post. Just think of dropping a rock in water: the ripples spread out from the center in all directions. So, think of the speaker as the center and sound waves emitting outward from the speaker. And diffraction does the same exact thing no matter what direction it is traveling. So, to say diffraction in one direction is more important than diffraction in another direction is to not understand what diffraction is and how it works. Another byproduct of diffraction is baffle step. Baffle step can be stopped by flush mounting drivers, or if you're using DSP you can also account for baffle step when designing a passive crossover. You will also hear people talk about edge diffraction. This is why a lot of manufacturers round over cabinet edges.
I think you're getting diffraction confused with dispersion. When we look at dispersion it is actually opposite of what you say. Horizontal dispersion you don't want to control you want it as wide as possible this is good vertical dispersion is bad and if you can control vertical dispersion that's good.
That's why 99% of speaker horns/waveguides are rectangle and wider than they are tall. They are widening horizontal dispersion and controlling vertical dispersion. It's called speaker pattern control.
Speaker design is a fascinating subject if you ever want to learn more about speaker's and speaker terminology and design you should check out Vance Dickason loudspeaker cookbook 8th edition.
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Follow Ups
- RE: Show me a current monitor - seancuster71@gmail.com 04:55:07 03/30/25 (1)
- RE: Show me a current monitor - hahax@verizon.net 19:46:58 03/30/25 (0)
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