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Old 17th January 2010, 04:15 PM   #891
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Actually, I just solved this.

I forgot to set Combined Response in the Tools menu!
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Old 20th January 2010, 06:04 AM   #892
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Hi David, would it be possible to include an efficiency window that shows a graph of system efficiency to compare two systems?
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Old 20th January 2010, 06:07 AM   #893
brsanko is offline brsanko  United States
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The SPL graph already shows system efficiency. You set how many volts you're putting into it and it shows you how many dbs it's putting out. That's what efficiency is!
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Old 20th January 2010, 06:08 AM   #894
brsanko is offline brsanko  United States
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Oh btw vs 25 is a corrupt file every time I try to download it.
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Old 20th January 2010, 07:47 AM   #895
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Quote:
Originally Posted by bubblersound View Post
Would it be possible to include an efficiency window that shows a graph of system efficiency to compare two systems?
Hi bubblersound,

I thought about it some time ago, but ultimately decided not to include an efficiency chart in Hornresp. The SPL Response can always be sampled at a number of frequencies and the system efficiency plotted manually, if you wish. System efficiency is given in the sample results.

Kind regards,

David
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Old 20th January 2010, 07:59 AM   #896
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Quote:
Originally Posted by brsanko View Post
Oh btw vs 25 is a corrupt file every time I try to download it.
Hi brsanko,

Are you by any chance trying to download Hornresp over a dial-up connection?

Kind regards,

David
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Old 20th January 2010, 10:31 AM   #897
Kolbrek is offline Kolbrek  Norway
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Quote:
Originally Posted by brsanko View Post
The SPL graph already shows system efficiency. You set how many volts you're putting into it and it shows you how many dbs it's putting out. That's what efficiency is!
Strictly speaking, that's sensitivity, but the two often get mixed up. Efficiency shows you how many watts you get out compared to how many watts you put in, and is a percentage. Since the system impdeance varies, input power is not constant for a constant input voltage.

Note that several definitions of efficiency exist. True efficiency is the ratio of power output to actual power input. Nominal efficiency is the ratio of power output to the power dissipated in a resistor with a value 2xRe (for horn speakers). Hornresp gives you true efficiency.

Bjørn
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Old 20th January 2010, 01:09 PM   #898
Ivo is offline Ivo  Netherlands
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Recently I have started using Ubuntu 9.10 on my computer. Not entirely out of free choice and I know little about computers anyway.

I just figured out I could use Wine to run Hornresp and have installed both Wine and the latest version of Hornresp. It starts up fine and runs a simulation, but entering driver and horn parameters goes wrong. It adds zeroes, apparently. I enter a value and when I leave the box, it adds a number of zeroes. It goes from 250 to 250000. The parameter calculation tools suffer from this as well, as maximum values are exceeded.

Since the number keeps a relation to the originally entered number, it seems to be something related to setting of decimals or something.

Is anyone familiar with this problem? Is there a solution?
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Old 20th January 2010, 02:31 PM   #899
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I just thought it was be easier to compare them with a graph or from the export text file.
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Old 20th January 2010, 04:36 PM   #900
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One more thing David. I'm not sure what I should input in the Maximum SPL window. My horn has 6 drivers with each driver being 400w rms, 800w program, 13mm xmax, 22mm xlim. Do I use 13 (or 22) x 6?
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