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In the Forum: Audio Discussions
In the Thread: What drives good sound?
Post Subject: Imitating musical instrumentsPosted by MusicLover on: 10/27/2005

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MusicLover wrote:
If I play a note in a trumpet, just one note, and stop, the mouth of the trumpet (also a horn, yes?) leads to a certain decay of that note. SAme with a piano. different decay. Now, how should a speaker driver material behave? Should it behave like hte piano or the trumpet. Or should it not have any decay at all?

It is very incorrect vision form my point of view. You should not confuse decay characteristic of trumpet or piano with decay characteristic of driver. In driver the decay pattern from impulse would be described by array of the very different parameters: the frequency of the test, the dynamic characteristic of amplification, the amplifier driver interface, the topology and type of the driver, the topology and the type driver of a baffle, the decay factors of the testing room, the type of electrical, mechanism or any another suspension was used with the driver, the day how the driver damped, the proximity of the test tone to the driver frequency boundaries, the relationship between the amplitude of the test signal and flex modulation within the driver magnetic structure and so on and so on. A driver should not behave like piano or trumpet, it juts physically will not do so and even presuming that driver has any resemblance with acoustic instruments lead nowhere else then into the jangles of audio demagogy.


---OK let's take this one step further. Suppose I took a trumpet and put it in my room. One note was reproduced. The decay was measured.
Now, the same trumpet note was recorded and played through my playbakc system. WOuld it decay the same?
OF course you are right, it;s not just the driver that influences the decay, it's a bunch of other things. THe point is, this decay pattern is very imoprtant.
I think horns have a better decay pattern in general than cones.

Sorry about not having heard the horns you like (vitavox?), I have only heard what I have heard.
IF you think I am mocking you , then I will stop posting. I thought I'd try your website since you seem to at least be doing the right thngs, which is building your own system. But if your ego is going ot get in the way of a good discussion, then i'l lleave you and the few others on this site.
Let me know.
 ML

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