Hornresp

Sheesh!

What's so different with these changes? I mean Avast went nuts when I tried to DL it, locking up the computer while it sent it off somewhere to be picked apart, then several minutes later unlocked/allowed the DL with a thanks for alerting them to a new software to add to their list.

GM
 
Hi Everyone,

CHANGE 1

Vented-box enclosure system losses are now taken into account using the QL quality factor parameter. The default value is 7 but the value can be adjusted between 1 and 99 using the slider control in the Chamber section of the Loudspeaker Wizard. If the slider is set to the maximum position, the true lossless model is selected. If the slider is moved to the minimum position, the control is reset to the default value of 7. The QL parameter reverts to the default value of 7 when a different record is selected or a new record is added.

Post #10986 linked below and Attachments 1, 2 and 3 refer.

https://www.diyaudio.com/forums/subwoofers/119854-hornresp-1099.html#post6301419

CHANGE 2

The Loudspeaker Wizard, and the Filter Wizard when activated from the Loudspeaker Wizard, now have a particle velocity chart showing the velocity at the outlet end of the port tube in a bass-reflex system, or at the mouth end of a horn or transmission line system.

Post #10992 linked below and Attachments 4 and 5 refer.

https://www.diyaudio.com/forums/subwoofers/119854-hornresp-1100.html#post6308489

CHANGE 3

When the Filter Wizard is activated from the Loudspeaker Wizard it is now possible to export SPL magnitude and phase data and diaphragm displacement data from the Filter Wizard, taking into account both absorbent filling material and filter settings.

Post #1 linked below and Attachment 6 refer.

https://www.diyaudio.com/forums/subwoofers/358128-export-file-data-hornresponse.html#post6294476

David, Hornresp shows that an update but upon downloading/installing the update, the old version remains and notifies of the update again.
 

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False alarms from security/virus scanners happen from time to time.

What seems to be happening in the case of Hornresp is that the antivirus software checks to see how many times the Setup.exe file has been downloaded, and if only a few times (which is the situation early on with a new release) it thinks that the file must be suspect in some way because it appears to have very limited use. If I stopped releasing updates to Hornresp the "false positive" problem would probably go away once the number of downloads reached a level considered to be acceptable by the security software :).
 
it seems it's only in the "normal" bass reflex.

For a direct radiator in a vented-box enclosure with offset port, system losses can be introduced by specifying absorbent filling material. It is not possible to do this with the standard Hornresp bass reflex system, so the QL parameter is used instead in that case. Including absorbent filling material reduces the port outlet particle velocity, similar to the result achieved by decreasing the QL parameter value.
 
Hi GM,

When the System Model acoustic circuit block diagram was first added to the Loudspeaker Wizard the diagram was displayed by default when the Wizard was opened. This was later changed in the update released 29/06/20 so that the standard schematic diagram again became the default. Are you seeing something different to this, perhaps? Schematic 1 has never been the default.

Kind regards,

David