Duran Audio has recently released the latest version of its Digital Directivity Analysis software (DDA). DDA was first developed as a tool to allow sound designers to implement Duran Audio’s powerful Digital Directivity Synthesis algorithm.
But what is DDS? Well back in 2000 Dr Evert Start from Duran Audio published a paper on Digital Directivity Synthesis at the IOA’s Reproduced Sound Conference in the UK. DDS is a technology that uses FIR filters to allow sound designers to control both the near field and far field dispersion of a loudspeaker array using a powerful algorithm from Duran Audio called Digital Directivity Synthesis. DDS was immediately implemented in AXYS Target Line Arrays and Intellivox arrays. DDS allowed users to electronically aim the sound where they want it; At the listener and to excite the audience and not the room. 13 years on Duran Audio continue to deliver AXYS Intellivox, Target & Beam Shaping Subwoofer products that make use of this revolutionary technology
As is often the case great things grow from small and humble beginnings. DDA was originally developed to generate the FIR filters required to synthesize the correct dispersion from an Intellivox or Target array. Now in 2013 DDA is a full 3D modelling and prediction environment which is intuitive and user friendly and has features to suit both newbies and the power users.
The prime function of DDA is to allow designers to define and visualise the directivity of their arrays; aiming the sound where they want it (at the audience) and avoiding those areas where they don’t want it (reflective back walls, etc.). However, it doesn’t just stop there DDA also allows users to visualise and predict: Direct SPL, Total SPL, D/R Ratio, STI and Delay Spread. And for those wishing to carry out RAY TRACING using AXYS products then DDA allows you to export the directivity files to CATT Acoustic or ODEON.
New for DDA 3.2
Previously 3D room models could be imported into DDA from Google SketchUp, CATT Acoustic or Odeon. In the latest version users can also build simple rooms using the 2D geometry builder. Which is ideally suited for simple set ups or touring applications.
In addition to the new 2D geometry builder Duran Audio has also been doing some work “under the hood” of the DDS Algorithms to improve directivity control and reduce the latency of DDS products. “It’s the attention to every detail, no matter how small, which helps to make the final product from Duran Audio so special. We are always pushing the boundaries of technology to push ever closer to perfection” commented Dr Evert Start, from the companies R&D Department
So what can we expect next from Duran Audio? Well, Duran Audio is a company that has always believed in innovation rather than replication. So when asked what we can expect next Gerrit Duran, founder and President, said “You’ll just have to wait and see what we come up with next. But rest assured once again we will be leading the market not following it!”