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Old 6th February 2009, 04:18 AM   #391
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Hi Sabbelbacke,

I just couldn’t wait until the weekend to fix things :-).


Quote:
Originally posted by Sabbelbacke
Funny SPL-things happen if the driver has the exact same horn on both sides .
This is to be expected. While I was checking however, I discovered that if horn 2 had a conical flare with S5 = S6, then a fatal 'Division by zero' error would occur when calculating the combined response. This has been corrected.


Quote:
Originally posted by Sabbelbacke
When in CH mode, it might be useful to block the "systems design" button.
The data in the horn segment 4 input fields should automatically be reset to zero when the System Design tool is used. This has been corrected.


Quote:
Originally posted by Sabbelbacke
A path length difference greater than the sum of all segment-lengths should be impossible to realise.
Great pickup - I had missed that one :-). The normal upper default limit of 999,99 cm has been changed so that it is now the sum of all the segment lengths plus chamber lengths. A warning message is displayed if the limit is exceeded. Note that for an offset driver horn, the value of L12 is not included.


Quote:
Originally posted by Sabbelbacke
Old saved data from previous versions seem to work fine .
This should always be the case. If any new version cannot read the saved data from a previous version, then something is definitely wrong.


Quote:
Originally posted by Sabbelbacke
When changing a 4 Segmented CH with both back- and compression chamber back to TH, this happens:
The Calculate button should be automatically disabled (which in turn disables the View Schematic tool). This has been corrected.


Quote:
Originally posted by Sabbelbacke
The possibility to switch between horn-types might bear the danger of creating unreal horns or not working input data.
It should not be possible to calculate results for an invalid horn configuration. This has been corrected.

The above changes are included in Product Number 2100-090206.

Thanks again for all your help, it is very much appreciated!

Could you please let me know if you find anything else.

Kind regards,

David
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Old 6th February 2009, 04:30 AM   #392
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Quote:
Originally posted by cowanaudio
I still find it remarkable just how close your model comes to measured results. All the main features are at exactly the right frequency.
Hi William,

I am pleasantly surprised myself at just how well the Hornresp predictions seem to compare to your measured results, particularly considering the sensitivity of the tapped horn model to even quite small changes in horn input parameter values.

You must be modelling your actual physical design in Hornresp very accurately indeed, to achieve such good comparisons. Well done!

Kind regards,

David
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Old 6th February 2009, 05:16 AM   #393
simon5 is offline simon5  Canada
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Location: Québec, Québec
Quote:
Originally posted by GM
Yes, you just can't sim the effect stuffing has on its response.

GM
What does this piece of software can't do ?

It can do vented boxes, horns, transmission lines, tapped horns, compound horns... what else ?

Great work David J. McBean !
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Old 9th February 2009, 07:16 AM   #394
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@David

wow, that was fast Thanx a lot once again!! You are the best If I find something new, I´ll report it immediately. The way you deal with feedback is just outstanding!

Best
Sabbelbacke
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Old 9th February 2009, 09:27 AM   #395
AndrewT is offline AndrewT  Scotland
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I wish he would slow down.

I only manage to download about one in three of his updated programs.

Once again, Thanks David.
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Old 10th February 2009, 04:22 AM   #396
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Quote:
Originally posted by Sabbelbacke
If I find something new, I´ll report it immediately.
Excellent, thanks Sabbelbacke!

Kind regards,

David
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Old 11th February 2009, 11:27 AM   #397
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David,
is there a way to tell hornresp that it has to use the Hornresp.dat
file from the folder where the Hornresp.exe is (like .\ instead of c:\hornresp)?

Background: I'm using hornresp on different computers which
leads to the problem that I have several different Hornresp.dat
files with simulations I wish to keep. Of course it's possible to use
HornRespMerge.exe in order to copy records from one dat file to
another but this is time consuming if your dat file contains more
than 100 records.

Therefore my question above came up: An easy
solution would be simply to run hornresp on my different
computers from a single flash disk, which also carries the
HornResp.dat file.

Nevertheless is hornresp a very very useful
tool. Thanks for that.

Erik
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Old 11th February 2009, 02:04 PM   #398
MaVo is offline MaVo  Germany
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I think, if you install hornresp on the said memory stick, the data should be stored on it and you can carry it around with you.
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Old 11th February 2009, 02:46 PM   #399
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Yes. AFAIK if u have a directory

/hornresp

and have everytrhing incl. the program in it on the usb stick, hornresp stores al the data in this directory.. It should work like this.
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Old 11th February 2009, 02:47 PM   #400
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Oops,
I just tried once again and it works. With some older version I also tried before, but that time Hornresp always created a c:\hornresp directory.

So, actually that was a quick fulfilment of my wishes but shame on me.

regards.

Erik
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