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Old 12th February 2010, 10:21 PM   #961
brsanko is offline brsanko  United States
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I absolutely love this program but there is one thing that has extremely frusterated me many times. If a design is not saved and the Esc key is hit, POOF!!! your design is gone. I have have spent an hour working an a design many a time and then accidentally done this thinking Autocad or some other program was the highlighted screen and lost all my hard work!
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Old 13th February 2010, 04:36 AM   #962
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Hallo David.

Thanks for the great program.

I wonder if it is possible to add High Pass Filter.
It would be usefull to control cone displacement in the design.

Best Regards
Atok
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Old 13th February 2010, 03:55 PM   #963
tb46 is offline tb46  United States
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Smile Posts #954/#955/#958 Ap1_Throat Chamber Exit Area

Hi David,

I think I may be getting it now - :-) : Ap1=0 is basically treated as an invalid input, the port is opened, Ap1 is set to equal Atc in the schematic, and Lpt disabled. Once Ap1=>0.1 the inputs are accepted and applied to the calculations. I assume that "No provision is made for horn transmission losses" also applies to the throat chamber and port.

What all this means - in reality, at different power levels - can only be determined by building and measuring. Maybe transferring to AkAbak, and adding losses may get me closer.

Thanks again for the help, and a great program. Your constant stream of updates and advice is greatly appreciated.

Regards.
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Old 14th February 2010, 07:43 AM   #964
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Hi FlipC,

Quote:
Originally Posted by FlipC View Post
So is there a way to flip between settings without having to reset and redo to compare?
No - apart from just showing the Baseline comparison.

Quote:
Originally Posted by FlipC View Post
Like the Compare function but having "memory slots" (like Bass Box) so you don't have to create a duplicate, adjust it, then go back to original to compare.
I have no plans to add any temporary storage "memory slots" to Hornresp. Having the Compare Previous / Compare Captured and Baseline functions, and being able to quickly save records in a database rather than having to create individual files, is about as far as I am prepared to go.

Kind regards,

David
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Old 14th February 2010, 07:59 AM   #965
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Quote:
Originally Posted by brsanko View Post
If a design is not saved and the Esc key is hit, POOF!!! your design is gone.
Hi brsanko,

Thanks for raising this issue - I can well understand your frustration. I will look at changing the program so that when the Esc key is pressed from the Input Parameters window in edit mode, the "Save changes to current record?" message is displayed. This should fix the problem.

Kind regards,

David
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Old 14th February 2010, 08:15 AM   #966
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Quote:
Originally Posted by toquito5000 View Post
I wonder if it is possible to add High Pass Filter.
Hi Atok,

While it would certainly be possible, I have no plans at this stage to add any incoming signal filtering functionality to Hornresp. My interest lies with the performance of the loudspeaker itself, not with how the signal is processed prior to reaching the loudspeaker.

Sorry :-).

Kind regards,

David
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Old 14th February 2010, 08:36 AM   #967
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Quote:
Originally Posted by tb46 View Post
Ap1=0 is basically treated as an invalid input, the port is opened, Ap1 is set to equal Atc in the schematic, and Lpt disabled. Once Ap1=>0.1 the inputs are accepted and applied to the calculations. I assume that "No provision is made for horn transmission losses" also applies to the throat chamber and port.
Hi Oliver,

When Ap1 and\or Lpt = 0, the program assumes that there is no port, and that the chamber connects directly to the tapped horn or offset driver horn throat entry point. There is no need for Ap1 to be even notionally set to equal Atc in these cases, because it simply doesn't exist :-).

Your assumption is correct - zero losses are assumed through the chamber and port.

Incidentally, while doing some further tests on the Loudspeaker Wizard tool using your tapped horn example, I noticed that if the value of Ap1 is decreased by clicking the left arrow on the slider scroll bar, the SPL response does not immediately change when the value is reduced from 0.10 to 0.00. The arrow has to be clicked a second time for this to happen. This anomaly will be corrected in the next release (for all sliders that can be set to zero). At the same time I will also tidy up some other minor "loose ends" that I have discovered.

I probably wouldn’t have picked this one up if you hadn’t queried the Ap1 = 0 results in the first place, so thanks :-).

Kind regards,

David
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Old 14th February 2010, 08:43 AM   #968
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Quote:
Originally Posted by David McBean View Post
Hi Atok,

While it would certainly be possible, I have no plans at this stage to add any incoming signal filtering functionality to Hornresp. My interest lies with the performance of the loudspeaker itself, not with how the signal is processed prior to reaching the loudspeaker.

Sorry :-).

Kind regards,

David
Hi David.

No problemo.
At this stage, it's already a great and usefull program.
Once again thank you for sharing it.

Best Regards
Atok
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Old 14th February 2010, 08:48 AM   #969
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Quote:
Originally Posted by toquito5000 View Post
Once again thank you for sharing it.
Hi Atok,

You're welcome. Thanks for the thanks :-).

Kind regards,

David
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Old 14th February 2010, 02:22 PM   #970
tb46 is offline tb46  United States
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Default Posts #954/#955/#958/#967 Ap1_Throat Chamber Exit Area

Hi David,

Thanks again for the help, and a great program. I'll keep on looking for things to query :-).

Regards.
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