Harman Professional Solutions has announced a licence free JBL Digital Directivity Analysis (DDA) 5.1 software update at ISE 2020.

Designed to work with JBL Intellivox products along with any point source speakers in the JBL portfolio using common loudspeaker format (CLF) data, DDA software is a powerful simulation tool for electro-acoustic design. DDA enables sound designers to visualise and statistically predict direct SPL, total SPL, D/R ratio, STI and delay spread.

Designed to offer improved workflow, the licence free 5.1 update adds two significant new features. DDA 5.1 streamlines the registration process and removes the need for repeated license renewal found in earlier versions of the software. DDA 5.1 also includes the new SketchUp plug-in, which enables users to easily import 3D geometry from SketchUp software.

Intellivox makes use of JBL’s advanced beam shaping (DDS) technologies. From DDA the radiation pattern of JBL Intellivox loudspeaker arrays can be controlled precisely and tailored to the shape and the acoustics of the space. In addition, DDA offers various design tools which reduce design time and help the sound designer to optimise the system performance. For installation and commissioning purposes DDA also generates FIR output filters which can be uploaded to supported DDS-controlled loudspeaker arrays using the JBL WinControl software.

“With DDA 5.1 we’re continuing our mission to help users streamline the modelling process to achieve more effective results with JBL loudspeakers,” comments Nat Hecht, product manager, commercial sound, Harman Professional Solutions.

“With DDA 5.1, users can instantly start using the program after registration. And with integrated support for third party software like SketchUp, engineers and acousticians are able to streamline their workflow.”

Overview of DDA Functionality:
  • 3D geometric models can be built in DDA using:
    • Built-in interactive 2D geometry builder
    • Import geometry from SketchUp requires Plug-in
    • Import geometry from Catt Acoustic, Odeon or EASE
  • DDA supports a wide variety of JBL Loudspeakers
    • All JBL Intellivox loudspeakers
    • All point source JBL loudspeakers described by a CLF file
  • DDA includes design tools such as:
    • Statistical room acoustic modelling including:
      • Direct SPL
      • Total SPL
      • D/R
      • STI
      • Delay Spread
    • Export of directivity data usage in Catt Acoustic, Odeon or EASE
    • Export/copy graphics to various formats

DDA 5.1 and the SketchUp Interface are available to download free of charge from the JBL website here.

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