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Old 4th August 2018, 11:51 PM   #511
wintermute is offline wintermute  Australia
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Ah OK I understand now, just scale one or both of the drivers +6db and ignore the summed response to check the slopes

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Old 5th August 2018, 06:57 AM   #512
kimmosto is offline kimmosto  Finland
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Yes. Not so easy and fast as sum response, but works. I know that sum is useful and automatic grouping is possible by driver ID (=row number in Drivers grid), but SPL graph is already quite mess if project includes e.g. 20 drivers. One solution would be selection: show sum of drivers or show individual drivers. That is "high end" what does not pay back.
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Old 6th August 2018, 04:35 AM   #513
kimmosto is offline kimmosto  Finland
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OPA Peak gyrator A and B library blocks added to setup of rev. 2.0.4.2.
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Old 8th August 2018, 12:05 AM   #514
b_force is offline b_force
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I did a pretty proper testrun today.
The wire and delete function don't always work well.
Basically what is missing, is the ability to hit ESC or something else to get out of wire mode.
At this moment you sometimes get stuck and just randomly need to connect the wire to a node to get out of it.
After that you need to delete the random wire again, which works a little strange.

Would it also be possible to see the voltages (or current) at each node?

Also I discovered that the SPL scale can't be chosen freely.
This is not a huge deal, but sometimes it's needed to use a custom scale to compare things.

Btw how is the 4th order bandpass with PR getting along?
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Old 8th August 2018, 08:23 AM   #515
kimmosto is offline kimmosto  Finland
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Quote:
Originally Posted by b_force View Post
Basically what is missing, is the ability to hit ESC or something else to get out of wire mode.
ESC cancels adding and rewinds wire, and finally deletes it. Just do not mind extra node you possible create to intermediate point of another wire while moving or adding something new.

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Originally Posted by b_force View Post
Would it also be possible to see the voltages (or current) at each node?
Voltage of nodes can be plotted to Filter chart with muted auxiliary "probe driver" with very high impedance.
PS. Nodes could be floating (compared to ground) in free form network needing some reference node selected by user.

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Originally Posted by b_force View Post
Btw how is the 4th order bandpass with PR getting along?
I just started "Band pass type 1P".
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Old 8th August 2018, 08:24 PM   #516
kimmosto is offline kimmosto  Finland
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Originally Posted by b_force View Post
how is the 4th order bandpass with PR getting along?
This is now done in rev 2.0.4.3. Quite difficult to verify is calculation correct or not, but at least simplified LTSpiceIV model shows equal result. This is not so common type in enclosure calculators.

Color inversion added to SPL Trace to support images with dark background.
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Old 9th August 2018, 11:18 AM   #517
kimmosto is offline kimmosto  Finland
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Quote:
Originally Posted by b_force View Post
Would it also be possible to see the voltages (or current) at each node?
Voltage measurement works with one extra driver. Any existing driver with loaded frequency responses is okay. Just Open it for voltage measurement.

Click the image to open in full size.
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Old 9th August 2018, 11:56 AM   #518
ywd518 is offline ywd518
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After I use it, there is a problem that the curve cannot be displayed.
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Old 9th August 2018, 11:59 AM   #519
ywd518 is offline ywd518
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The image cannot be uploaded.
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Old 10th August 2018, 08:03 AM   #520
kimmosto is offline kimmosto  Finland
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Quote:
Originally Posted by ywd518 View Post
After I use it, there is a problem that the curve cannot be displayed.
I updated previous Probe Driver image to point out that it's not necessary to add new driver to Drivers table. Just add new driver instance of existing driver to the network and Open it (via context menu or Ctrl+O) to disable acoustical and impedance effects. Then it just measures gain at terminals (=voltage) and displays it in Filter chart.
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