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In the Forum: Playback Listening
In the Thread: Basic guide to advanced audio
Post Subject: There are no reflections only in the free airPosted by haralanov on: 8/1/2011
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 Romy the Cat wrote:
What does it mean “horny”?

Take a look at the video:
 haralanov wrote:
Notice how Vengerov starts to play at 0:25-0:40:
http://www.youtube.com/watch?v=dk6tqaPLp5M&feature=relmfu  "You start being heroic - which is unnecessary" - he said :-))

 
 Romy the Cat wrote:
do you mean that they had honk?

No. The amount of honk mainly depends by how much a given horn is pushed to work at its lower working range. When I give examples, in it entirely in the context of horns which have been high-passed at least one octave higher than the horn is able to support.

 Romy the Cat wrote:
It is incorrect. There is no reflection surfaces. 

To have a situation where there are no reflection surfaces, the compression driver must be radiating directly in the air. Loading it with a horn is equivalent of placing reflective surfaces around the exit of that driver.
 
 Romy the Cat wrote:
Of cause in case of horns mouths are the active transducers…

That’s because the wave cannot escape until it reaches the mount of the horn – it is surrounded by all sides. But that happens only at the lower working range of the horn. When you play some HF tones in let say 440Hz MF horn, the wavelength of these HF is small in comparison to the horn’s diameter and you have a lot of random uncontrolled reflections. If you don’t want to have reflections in the upper part of the working range, then you have to eliminate the horn surface, which means to eliminate the entire horn or to use it no wider that 1 octave.

If I have to be fair, right now I’m not able to feel the horn smell, because the smell of my pillow completely overrides it:-)
Good night,
Haralanov

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