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Old Yesterday, 11:50 AM   #1
epa is offline epa  Netherlands
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Join Date: Apr 2010
Location: amsterdam
Default hornresp driver database

Since hornresp. 35,10 user have the ability to save driver parameters in a separate database.
David mc-bean made the db plain txt so they become interchangeable.
The database is to be found in the hornresponce folder.
So this topic is to swap databases between users.
Ill start with the eighteensound database.

some guidelines to make searching easyer(i'm open to sugestions)

example:
brand(space)size(space)type model(dash)ohm.txt
eighteensound 15 nlw 9401-4.txt

note : please double check the data before you start bilding/purchasing a box/driver!!!!!!!!!!!!!!!

tnx david mc-bean for this wonderfull program
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. hr driver db

Last edited by epa; Yesterday at 11:58 AM.
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Old Yesterday, 12:02 PM   #2
xrk971 is online now xrk971  United States
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We should have an equivalent dB for drivers in AkAbak. That is always one if the things that helps to get going quick - not having to re-enter T/S params. I don't know why HR uses a format that requires additional steps to calculate Cms and Rms - why not just do it the way most manufacturers list it? e.g., Sd, Fs, Re, Le, Qms, Qes, (Qts), Bl, Mms, Vas, xmax.

AkAbak format looks like how it would appear as plain text (with units) when looking it up on website.

It can be one big file separated by a line for each driver.

Last edited by xrk971; Yesterday at 12:06 PM.
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Old Yesterday, 12:40 PM   #3
epa is offline epa  Netherlands
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Join Date: Apr 2010
Location: amsterdam
in hr you need to type 7 entry's in total.
it shure is a lot better then the way winisd does it .

you can always export the akabak script from hr.
then you also get the driver.
(thats how i do it to get me started in akabak)
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. hr driver db
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Old Yesterday, 01:10 PM   #4
xrk971 is online now xrk971  United States
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I agree it is horrible how WinISD does it. Here is an example of how an entry look in Akabak. I like how comments can be added and the units are clear.

Code:
Def_Driver  '55-2421' | MCM 8 in, Qts 0.22, 8 mm xmax, 87dB
  SD=208.7cm2   |Piston
  fs=25.7Hz
  Mms=59.8g
  Qms=14.00
  Qes=0.22 
  Re=3.4ohm 
  Le=2.47mH 
  Vas=30.4L
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Old Yesterday, 03:59 PM   #5
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Join Date: May 2006
A driver database is a good idea in theory but this is the problem:

Quote:
Originally Posted by epa View Post
note : please double check the data before you start bilding/purchasing a box/driver!!!!!!!!!!!!!!!
If you need to double check the data you might as well enter the parameters yourself.

Also, unless you know how the parameters were measured they might not be useful. For example, are they manufacturer's published specs? From what year? (Specs sometimes change over the years.) Are they diy measurements? At what voltage? At what humidity, barometric pressure, and temperature? Is the driver broken in or not? Is the driver a good representation of it's model or is it statistically outside the average? (For example a batch with a stiffer suspension than normal.) Does the diy'er even know what he's doing when measuring?

And that's just a short list. For those reasons and others I am going to search for my parameters, since the source will usually give a good indication of their reliability. And I intend to maintain my own database of drivers in Hornresp. It's unlikely that I would ever use someone else's database. Like I said, it's a good idea but having to verify the data kind of negates the utility.
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