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Old 13th January 2021, 05:52 PM   #2631
kimmosto is offline kimmosto  Finland
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This is probably total off-topic, but speaker concept is not the key to good sound reproduction. Studying and building different designs, concepts, radiators, amount and type of directivity could be interesting hobby, but final solution comes with room acoustics. Shortening early delay time etc. until acoustic resolution reaches personal preference. No speaker concept is able to beat that. High quality components, construction and radiators without excessive directivity at HF to avoid spitting of artificial details.
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Old 13th January 2021, 06:37 PM   #2632
kimmosto is offline kimmosto  Finland
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Quote:
Originally Posted by kimmosto View Post
delay
decay
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Old 15th January 2021, 01:03 PM   #2633
kimmosto is offline kimmosto  Finland
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2.0.60.0 (2021-01-15)

Main
* Rotate command moved from context menu to R button below schematic.
* Single component is possible to rotate with right click while dragging.
* Wire stretching while component movement is controlled with Stretch checkbox. Was earlier by pressing Alt-key while movement.
* Coordinate text boxes and zooming 1:1 and Fit buttons moved up a bit to make some room.
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Old 15th January 2021, 06:52 PM   #2634
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Quote:
and radiators without excessive directivity at HF to avoid spitting of artificial details
can you give some examples of poor hf directivity?
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Old 16th January 2021, 07:20 AM   #2635
kimmosto is offline kimmosto  Finland
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^No names, but generally ring radiator, long planar/ribbon and horn requires very high quality driver to avoid spitting HF resonances to your face.
"Soft/damped" conventional metal dome with diffuser is not so directive requiring better room acoustics (=low EDT) for adequate acoustic resolution, but could also be higher quality due to low resonances at HF.
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Old 16th January 2021, 08:09 AM   #2636
kimmosto is offline kimmosto  Finland
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2.0.60.0 build 2021-01-16
Tiny adjustment to wire stretch mode: Pressing Shift key while dragging inverts wire Stretch mode on the fly. Status of Stretch checkbox is saved to user settings.

Now it's very close to original function (with Alt key) but enables selection of default mode.
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Old Yesterday, 05:15 AM   #2637
DcibeL is offline DcibeL  Canada
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In the T/S parameter calculator, I seem to get inconsistent values for the extended Z model for semi-inductance. It seems to rely on the component values being near the expected value previous to hitting the "solve" button on the calculator. The curve can often be a fair bit off on the measured impedance, but hitting the solve button again doesn't get any closer. Starting from all parameters = 0 does not result in as good a result as if the parameters are manually adjusted somewhat.

It would be great, to allow manual adjustment of the extended Z model values, to help nudge the curve fitting algorithm in the right direction. As it is, I have to close out of the T/S calculator to change the values on the "edit parameters" window , then re-open the T/S calculator to see what the curve looks like and re-solve.
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Old Yesterday, 05:20 AM   #2638
DcibeL is offline DcibeL  Canada
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Example. Here I've nudged the values close to where they should be. Error = 0.017
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Old Yesterday, 05:21 AM   #2639
DcibeL is offline DcibeL  Canada
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Here, we started at all values for Le, Leb, Rss, Ke = zero. Error = 0.58 and you can see the values are very different than above. Hitting the solve button multiple times will never get to the error = 0.017 result above.
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Last edited by DcibeL; Yesterday at 05:23 AM.
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Old Yesterday, 05:34 AM   #2640
kimmosto is offline kimmosto  Finland
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^Both results are acceptable imo but of course you can continue clicking to get more accurate result. Editing of extended parameters is enabled automatically if Error is above high limit and text box is red.
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