New features in ULYSSES Version 2.83 

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1. Higher Resolution of Level-Time Calculations
The maximum resolution has been doubled (4-fold number of mapping points).

In case you do not want to make use of the higher resolution you may still choose lower resolution in the calculation menu.
This will reduce resolution and calculation time accordingly like in previous versions.

>>>>>>>Important Note<<<<<<<<<<<<

All previous *.upr files can be opened and edited using version 2.82.
Once you opened an *.upr file created with an older version and save a new level and time calculation with version 2.82 this *.upr files may not be opened or edited by older ULYSSES version any more.
(Background: The higher resolution leads to a change in *.upr file data format).

If you want to be able to open and edit these older files in one of the previous ULYSSES versions (2.71) please save these *.upr files to a separate folder before opening and editing them in the 2.82 version

Please use the new ULYSSES Viewer (2.82) and provide the new ULYSSES Viewer to your customers, clients or project partners in order they can view and print the project data created by ULYSSES 2.82 version

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2. New colour scheme for Level and Time calculations

ULYSSES now features a new colour scheme for the mapping of level and time calculations.


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3. Loudspeaker Handling

Loudspeaker location and orientation may be manipulated using the nodes of their cabinet drawings (activate the node snap!) .


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4. Loudspeaker Arrays

After selecting a number of speakers to become elements of an array, this array (all loudspeakers selected for this array) may be turned and tilted as one object.


5. Line-Arrays

Unfortunately there is no common standard on Line-Array data or algorithm for Line-Array behaviour prediction in CAAD simulation software.

At the time being the methods for Line-Array behaviour prediction are quite different and the data and methods used are not transparent to the user or even to follow-up the method or procedure used.

In order to overcome this dilemma IFBsoft tried to find a user transparent approach within the ULYSSES Software.
 
The approximation of Line-Array behaviour has basically been available in the ULYSSES Software for a long time.

For the most simple straight forward approach every speaker element of a Line-Array is represented by a point source balloon of this element measured in the far field.
(If you do not find balloon data of the desired speaker please contact the manufacturer for assistance.)

The level calculation (in octave-bandwidth mode) includes relative phase and results can be used for estimation on level distribution and other acoustical parameters to be expected. 

For Line-Array simulations with ULYSSES we recommend:

- point source balloons of this element measured in the far field
- use of identical speakers (ballons)Ballons in einem Line-Array zu verwenden

Regarding Line-Array simulation results please note: 

- perform level calculation in octave-bandwidth mode which will include relative phase

- Especially the higher frequency octave calculation results show some bumps and dips in direct sound level (and parameters derived from direct sound) in the main coverage area. 
Measurements in real world scenarios did show less steep local bumps and dips.

The calculated results should not be over-interpreted by just looking at single octave bands.
A more broadband or a look at the overall frequency average is closer to real world measurements.

- The calculation results show higher levels at the back side of the arrays for very low and low-mid frequency range compared to real world measurements.

Please find further information on Line-Array simulation in ULYSSES, including a comparison of simulation and real world measurements(e_line-array-white-paper_03_2006.pdf), on our web-site at:
  
www.ifbsoft.de

http://www.ifbsoft.de/software/ulysses/downloads/documents/e.php



Have fun,

IFBsoft

Copyright 2006 www.ifbsoft.de