Monthly Archives: November 2013

Transmission Line v3.6.3.2

The major update in this new version is a change to the stuffing model.

There is now more absorption at high frequencies and less at low frequencies. I have also made an attempt to correlate the stuffing density value to actual density figures. (i.e. you can input the stuffing in kg/m³, or lb/ft³ if you that way inclined ;). Improving the stuffing model is still very much an ongoing process but this should be a fairly significant upgrade in accuracy.

Other minor updates:

  • Added a decimal place to the graph cursor readout.
  • Fixed a bug where a branch on the very first element would be ignored.
  • Updated the Filter Window icon.

I hope these updates prove useful. If you have any queries, problems or requests please email them to us and we’ll try to help.

TL Download Link

Transmission Line v3.6.3.1

The previous update introduced a Driver Position edit box on the Enclosure window in order to allow users to accurately enter the offset of a driver. However there was a bug in the code which meant that visually the driver moved but it wasn’t updated in the model.

The main purpose of this update was to fix this bug, which we have done.

We have also added 12dB/Octave and 24dB/Octave filters and as well as making a slight improvement to the radiation impedance calculation (more accuracy at high frequencies).

As always, if you have any queries, problems or requests then please email them to us and we’ll try to help.

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Transmission Line v3.6.3.0

The major change in this update is the addition of filters.

There is a Filter Window (accessible from the Window menu or with Ctrl+Alt+F ) where you can implement a Low-Pass and/or a High-Pass filter.  You can specify the Q and cut-off frequency of each filter. Both filters are currently 2nd order only (12dB/Octave).

Other minor updates:

  • Added a driver position edit box to the enclosure window.
  • Updated the tab order on all forms.
  • Updated the Icon Logo.

I hope these updates prove useful. If you have any queries, problems or requests please email them to us and we’ll try to help.

TL Download Link