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Old 19th June 2009, 06:22 AM   #621
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Default HORNRESP VERSION 22.20

Hi Everyone,

Hornresp Version 22.20 has just been released. Eg can now be set to 0. A zero value for Eg means that the driver diaphragm has a constant rms velocity of 10 centimetres per second (option suggested by Jean-Michel).

Product Number 2220-090619 refers.

Kind regards,

David
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Old 19th June 2009, 09:26 AM   #622
Henkjan is offline Henkjan  Netherlands
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wow, you keep putting out new versions faster than I drink coffee (well, almost ) Thanks a lot!

maybe it was already asked somewhere in the previous 25 pages, but would it be possible if the number of segments is variable and the input sheet adjusted accordingly? and have a bit more than 4 segments?

another, probably more difficult to answer question, could stuffing be added to each segment? this may not be important to the typical horn, but for the TL fraction out here this is very important.
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Old 19th June 2009, 09:47 AM   #623
Henkjan is offline Henkjan  Netherlands
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Quote:
Originally posted by David McBean
..... The volume of each segment is of course already given on the main Schematic Diagram when the mouse pointer is moved over the segment. The total system volume is also shown (see attached).
your program is full of those little gems, I love it more every day only having a brief manual and discovering features as you go has it's charmes
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Old 19th June 2009, 11:14 AM   #624
Jmmlc is offline Jmmlc  France
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Default Re: HORNRESP VERSION 22.20

Hello David,

Thanks a lot for all the work you do to give a solution - when possible- to such requests as mines.

The constant velocity diaphragm will be very useful to compare horns without the influence of the driver.

Here attached the response of Le Cléac'h horns having the same cut-off frequency (Fc = 160Hz) and different T values (from 0 to 1.5)

Best regards from Paris, France

Jean-Michel Le Cléac'h


Quote:
Originally posted by David McBean
Hi Everyone,

Hornresp Version 22.20 has just been released. Eg can now be set to 0. A zero value for Eg means that the driver diaphragm has a constant rms velocity of 10 centimetres per second (option suggested by Jean-Michel).

Product Number 2220-090619 refers.

Kind regards,

David
Attached Images
File Type: gif cv_jmmlc_.gif (18.2 KB, 201 views)
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Old 19th June 2009, 11:36 AM   #625
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How on earth did I miss that. Talk about absent minded

I blame it on the horns
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Old 20th June 2009, 06:51 AM   #626
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Quote:
Originally posted by Henkjan
Maybe it was already asked somewhere in the previous 25 pages, but would it be possible if the number of segments is variable and the input sheet adjusted accordingly? and have a bit more than 4 segments?

Another, probably more difficult to answer question, could stuffing be added to each segment? this may not be important to the typical horn, but for the TL fraction out here this is very important.
Hi Henkjan,

Your first question has been asked previously - see Post #478 for my answer.

As I recall, your second question has also been asked before - the answer is effectively the same as that given for question one :-).

Kind regards,

David
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Old 20th June 2009, 06:59 AM   #627
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Quote:
Originally posted by Henkjan
Only having a brief manual and discovering features as you go has it's charmes
Hi Henkjan,

All features are documented in the Hornresp Help file. It should not be necessary to discover anything :-).

Kind regards,

David
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Old 20th June 2009, 07:05 AM   #628
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Default Re: Re: HORNRESP VERSION 22.20

Quote:
Originally posted by Jmmlc
Here attached the response of Le Cléac'h horns having the same cut-off frequency (Fc = 160Hz) and different T values (from 0 to 1.5)
Hi Jean-Michel,

It looks good. The results are as expected :-).

Kind regards,

David
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Old 20th June 2009, 07:10 AM   #629
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Quote:
Originally posted by David McBean
Only if it doesn't require too much work - I'll have a look and see what would be involved.
Hi Cordraconis,

Further to my post above, just confirming that volume details will be added to the Horn Segment Wizard in the next release.

Kind regards,

David
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Old 20th June 2009, 07:19 AM   #630
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Default Re: Re: Re: Re: HORNRESP VERSION 22.10

Quote:
Originally posted by David McBean
I'm not sure how much work would be involved - I will investigate further.
Hi Jean-Michel,

Further to the above, the attached screenprint shows the constant directivity power response of a TD2001 driver and Le Cléac’h horn (320Hz, T = 0,8) with a constant diaphragm acceleration of 1000 cm/sec2. The equivalent on-axis pressure response is shown in grey.

Based on these results, I am not sure that there would be much to be gained by including a constant acceleration option in the production version of Hornresp. Do you agree?

Kind regards,

David
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File Type: jpg acceleration.jpg (42.9 KB, 320 views)
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