Object Attributes now available per Variant. Instead of duplicating objects, objects can now be assigned different attribute values in different project variants (e.g. maximum speed in variant 1: 100 km/h and in variant 2: 80 km/h). For a detailed description and further details, see reference manual chapter 13.5
„Copy Attributes“ to conveniently transfer the attributes between variants.
@V# as new syntax for accessing variant-dependent attribute values (e.g. LP1@V2 or DTV@V2 for value of target variable 1 or DTV in variant 2)
@SOF# resp. @STF# as a new syntax for accessing the spectral values of octave spectra (e.g. LP1@SOF500) or third-octave spectra (LP1@STF400).
Expandable menu ">>" for easier selection of attributes including the new syntax in several places, e.g. "Modify attributes", Object Scan, Object tables, Generate Label.
Adaptation of many attribute lists to new syntax (e.g. LP1_500 no longer available when creating a label at the receiver)
Results table: Weighting of third octave and octave band values now takes over the settings in Options | Miscellaneous (previously: always linear weighting)
ISO 9613-2 (2024) available as additional calculation standard for industry noise.
CadnaA Object Foliage now with input option for forestal parameters for calculations according to ISO 9613-2 (2024) Annex A.2.3.
Directivity of chimney stacks according to ISO 9613-2 (2024) Annex B now available.
Updates to Spanish railway data when calculating with CNOSSOS-EU Directive 2021/1226 according to the updated documents containing application information from ADIV as well as CTB
New type of track “ES-ADIF FT Mono-block Sleeper/super soft pad” (Railway object)
New train class S-109 available in the default library
Updates to train class S-108 in the default library
New Brake Type “ES-Disco+4dB”
Values were added for B and D-weighting.
Closed auxiliary polygon in the 3D special view: FollowDGM=1 as a string variable in the memo field creates a terrain-following area.
Fonts and font sizes for tables (e.g. object tables and library tables) are now user-definable in the Options | Miscellaneous menu.
Lua: Access to the row and column number of a grid point with r.row and r.col
Lua: Access to coordinate system via cna.get_epsg() and cna.set_epsg()
New Keyword #(License) for querying information on the license used.
Increase of the maximum number of characters per value for XLSX-Import from 256 to 4095.
The RTF-Export template file now also contains vertical Area Sources.
Update Road Type library for sonROAD18 (sonROAD18 - Weiterentwicklungen und Ergänzungen; Version 2.0; 2023-02-07). Recommendation: Use the Library-Manager (Tables | Library-Manager...) to copy the updated Library from the Default library to the Global library.
Modification in the Railway dialogue: The Number of Trains can only be edited in the Railway dialogue if “(local)” is selected for the List of Trains.
Evaluation parameters for calculating user-defined time ranges are also available for the tennis source. Usage: =f(x) with spomhxx (xx defines the time range)
Opening of files which were created (or saved) with a newer CadnaA program version is no longer possible. (Previously: Opening was possible with a warning displayed which parts of the file were impossible to read. Saving such a file under the same filename after ignoring the warning message could lead to corrupt files or data loss.)
Improvements for long calculations and the use of server license dongles have been implemented.
Bug Fixes
Improvements regarding Modify Objects and the Appearance: Range of Scale.
Optimizations related to the operating time of the Tennis - Point-of-Serve source.
For ISO 9613-2 industrial sources, type "Single band" | Activated option "Calculation in 1/3-Octave Bands" partially incorrect use of the reflection loss has been fixed.
Road object: For the calculation of road noise emissions with direct input of the emission level, a correction was made to take the road gradient into account if an option for automatic determination of the road gradient was selected.
When using spectra with "Li from interior sources", an improved update method is used.
Optimized use of the absorption coefficient alpha for the 3D reflector object.
3D-special view: incorrect display of crownings of screens (cylinder and curved cantilever) corrected.
Calculation configuration Industry tab, option "Obstacles within Area Src not reflect": Reflectors inside the source are not taken into account even if they are located within the search radius of the receiver (previously only within the search radius around the source).
Fixed license lag for CL when entering objects to the 2D view.
Template "SonRoad18 (2021)": Check whether buildings have a reflection loss of 1 dB could lead to false warnings.
Some columns of the default object tables have been changed to Column Width “auto” for an optimized shape export.
Improvement in the allocation of folders imported via the ObjectTree.
Adjustments to user-defined labels which are saved via Defaults >>.
The function “Optimize Area Sources” (Calculation | Optimize Area Sources) did not provide a value for “After:” in the output dialogue, depending on the language set.
A reset of the height Z is avoided when opening/closing a height point dialogue in the 3D-View (Options | 3D-View...).
Attributes ACFTxxT/E/N corrected
Road, HJ 2.4: Distribution of vehicles corrected when using MDTD as input