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CadnaB 2024

New Features

  • ISO 12354: Structural reverberation time in-situ correction for type A elements according to ISO 12354-1 Annex C is available (Calculation configuration | Structural reverberation time).
  • DIN 4109: The correction KT to consider different spatial allocations for impact sound transmission between the sending and receiving rooms can now be manually overwritten in the results dialog.
  • Option for manual adjustment of the room volume implemented (Mode: Project | Room dialog).
  • DIN 4109: Special entries for lightweight ceilings and double-shell partition walls can be transferred in the results mode using copy (Ctrl + c) & paste (Ctrl + v).
  • In the dialog "Room/habitation assignment" it is now possible to create new habitations and rename apartments and rooms (Mode: Project).
  • Adjusted output of flanking transmissions for floors and ceilings during horizontal transmission in the results dialog for multi-piece partitions.
  • Chinese can be set as the language (Extras | Select language).
  • ISO 12354: Change default search method for flanks to 0.5 m according to DIN EN ISO 12354- 1:2017-11 Annex J.4.4 (for new projects).

Comprehensive optimization of interoperability:

  • ISO 12354: The interoperability calculation now also takes small components into account, which are defined by a element normalized sound level difference Dn,e.
  • Single wall pieces that are smaller than the couplings distance spacing of the couplings are considered in the calculation.
  • Sound levels transferred from CadnaA to CadnaB are now named after the CadnaB walls. The ID is stored under "Supplementary information" in the data for the sound level.
  • ISO 12354: Sound levels between CadnaA and CadnaB are only transferred if calculation results are available in CadnaB.

Bugfixes

  • DIN 4109: Bug fix in the assignment of Dnf for horizontal transmission in solid construction from an overlying Dnf-specification for the floor (this may influence calculation results).
  • Bug fix in naming objects when duplicating storeys.
  • Bug fix for junction detection junction type 174.
  • Adaptation of the search method for flanks with small offsets (this may influence calculation results).

Interoperability Bugfixes:

  • Bug fix in the correction of areas, multi-part walls or walls with elements (this may influence the calculation results).
  • Adaptation of flank assignment of multi-piece separation components in case of horizontal transmission.
  • Flanking transmissions of the respective wall are considered at each coupling.