Download iNoise

The setup includes an unregistered license for iNoise Free V2026 that is valid until 1-1-2027. All users with a registered license on iNoise Free V2024 or a purchased license on iNoise Pro or iNoise Company which is not yet expired, can use their existing license files for V2026.

Changes in iNoise 2026 compared to iNoise 2024.3

Fixed issues

• ISO 9613-2:2024:
  • The value of Kmet for barriers was calculated according to the ISO 9613-2:1996 standard and not according to the new standard.
  • Calculation crash due to modelling error caused by emitting roof item not fully above a roof
• Clearer indication of reference Settings for ISO 9613-2:1996 + ISO/TR 17534-3:2015 recommendations in Help.
  Meets documentation requirements in ISO/TR 17534-3.
• Export
  • Exported polygons are now INSPIRE compliant. Polygons with holes are now written with exterior rings and interior rings. Prevents invalid geometries in GIS.
  • Exporting polylines to JSON files: the exported geometry was not according the JSON standard.
  • Exporting items to text formats such as GML and JSON
    This export used the user-defined decimal separator, so possibly a comma. This causes problems when reading these files into Geomilieu or another package. Currently, the decimal point is always used in the export.
• Import
  • Limits object import from CSV to point items (GML/JSON export format) as it only works for ‘point’ type items. Updated help
  • SHP file import now possible when database record was larger than 32 kb
• Vertical area source ISO 9613-2:1996 1/3 oct: input dialogue did not allow 1/3 octave data
• Creating receivers around buildings
  Receivers will no longer be created for buildings where no point height is specified. This can occur, for example, if the building is too low.
• Visualisation
  • Vertical sources and facade sources 3D visualisation: Display options setting of emitting façade affected the 3D view of façade sources
  • Vertical-sources 3D view did not correctly show base of object
  • CrossSection with polyline/ploygon: also available for line segments and in read-only mode
• If the Check model dialogue was minimized, the user could not restore it and it stayed invisible. Only restarting iNoise could solve this problem.

Enhancements

• New: Li (worst case level) calculated for ISO 9613-2:1996 (1/1-octave and 1/3-octave). Available in the Table of Results
• New: LA;max available for all methods
  Note: roads, railways, wind turbines and moving point sources do not support LA;max
• New: ISO 9613 cylindrical object and support of reflection in cylindrical surfaces.
  Available in ISO-9613:1996, ISO-9613:1996 (1/3-octave) and ISO-9613:2024 models
• New: CNOSSOS floating buildings
  Enables the impact of bridges to be more easily modelled. Buildings and barriers set to Floating item are ignored if the source is lower than the base height of the floating item
• New: CNOSSOS Health Impact Assessment calculation to provide Population Exposure in 1 dB classes from 40 to 90 dB, and with below 40 and above 90 dB to be able to calculate the total population. For use in END reporting
• New: Population noise exposure assessment results: export to a shape files
• New: Create buffers around items. After selecting points, lines, and/or surfaces, you can create a buffer at a specified distance around the items
• Calculation speed significantly enhanced (eg factor 2) by removing duplicate height lines.
  Particularly impacts larger models with height points and calculations using all terrain items
• Area sources: “IgnoreObjects” is available in ALL calculation methods, including Cnossos
• Point results can now also be exported to JSON files
• Color schemes from ColorBrewer 2.0 can be used for contours and thematic mapping. See http://colorbrewer.org/ for more information
• Enhanced View menu item now includes Display settings options and Cross section with selected item, making them easier to find
• Source Explorer software, updated user interface
• New options for point symbols in the display options: the ‘+’ and ‘x’ symbol are added
• In the Open Model Manager, it’s now possible to display information about the selected area, version, or model on the right side of the dialog.
  This can be hidden by clicking ‘<<‘ and displayed by clicking ‘>>’
• Help updated and enhanced including:
  • Display settings for Result Contours
  • Information Cdiffus for modelling emitting facades and roofs as indoor sources
  • LA;max and Li
  • Height definitions and when to use user-defined heights
  • How foliage object heights are defined
  • How the ‘ignore objects’ option in area sources is handled
  • New features
• Demo project updated to include CNOSSOS Health Impact and Population Exposure
• Clearer license renewal information warning with 2 months remaining
• Better handling of end date of existing licenses:
  • When we receive an order for iNoise, our automated system searches if a license file exists for the delivery mail address. If a license file exists and the expiration date is in the future, the license will be added to the existing license. If not, the license will be valid for 1 year starting on the day after the order date.
  • If a license has expired less than a week ago, the software will display a popup to remind the user to renew his license, after which iNoise will function as usual until one week after the license expiry date.

Other

• Projects created with iNoise 2024.3 or older will be updated to the new project structure and ALL calculated results will be deleted as a new re-calculation might give different results.
• Updated system requirements on website FAQ.
• Free license-end-date is extended to December 2026.