|December 7th, 2016|
Here's an example contra dance hall:
What's wrong with this picture? It's going to feel way louder near the speaker than farther away:
closest person: 1ft farthest person: 15ft effective difference: ~15xThis wouldn't be so bad if people could sort themselves in the hall based on the volume they prefer, but contra doesn't let you do this. To get a more even volume distribution, get the speaker up above the dancer's heads:
Now the difference is more like 5x. What if we get the speaker even higher?
This does better because the speaker is now closer to being a consistent distance from people's heads (~3.5x), but it starts to sound pretty muddy. The problem is that a lot of the sound is bouncing off of the ceiling on its way to the dancers, and things sound clearest when you have as little reflection as possible. Additionally, there's a bit of a "hole" right in front of the stage, where dancers will get very little direct sound from the speaker.
To fix this, we can angle the speakers down a little:
Now everyone is happy.
(I've generally used ultimate tall stands with K10 speakers that have a built-in tilter. With speakers that don't have built-in tilters it's possible to use external ones (like these) but they shift the center of gravity of your speaker in a way that might be a problem on a tall stand. Permanent "flown" installation is ideal, but most of us aren't running sound in a situation where that would make sense.)
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