• ZORBA is a quick, easy-to-use tool for predicting the absorption performance of porous systems with perforated facings. ZORBA is ideal for investigating the finishes in acoustically critical rooms such as studios, concerts halls, class rooms and lecture theatres.
• CadnaR is a powerful software program for predicting indoor acoustics. CadnaR enables users to carry out on-site acoustic simulations, making it the ideal tool for noise issues in the workplace and for room acoustics optimization as well. It is based on exactly the same software interface as CadnaA, the noise prediction software for outdoor use.

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2. Prediction Software Inc
3. Gesture Control Software

Keith Ballagh is a Principal of Marshall Day Acoustics, working out of the Auckland office. He graduated from the University of Canterbury in 1974 with first class honours in Mechanical Engineering, joining the Acoustics Section of the Department of Scientific and Industrial Research as a Scientist and in 1981 was appointed Section Leader.

In 1981 he worked at the Physikalisch - Technische Bundersanstalt in Braunschweig, Germany, one of the worlds leading acoustic research centres. Keith joined Marshall Day Acoustics in 1987 and became a partner in 1995. His work has included the full range of acoustical consulting work, from room acoustics to industrial noise control and environmental impact studies.

Keith developed INSUL sound insulation software and Zorba for predicting absorption performance of systems both of which have sold in more than 30 countries throughout the world and are in use by universities, consultancies and manufacturers.

Qualifications & Memberships

By dB Foresight. Noise prediction and mapping software for outdoor industrial projects. Noise impact assessment software. Fully compliant with the ISO standard 9613-2. Convenient output data for.

• Bachelor of Engineering (Mechanical) 1^st Class Honours, University of Canterbury
• Member of NZ Acoustical Society (Past President)
• Member of the American Acoustical Society

Publications

Sound insulation of timber framed structuresAccompanying presentation to 'Sound insulation of timber framed structures'Accuracy of Prediction Methods for Sound Transmission LossPrediction of Acoustic Performance of Composite Steel Floors

Zorba Sound Absorption Prediction Software Cracked Version

Contact details

Auckland

keith.ballagh@marshallday.co.nz

+64 9 379 7822

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A quick & accurate tool for predicting the sound insulation in walls, floors and ceilings.

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Latest News

• Release 9.0.23

  INSUL Release 9.0.23, January 2021, is now available.This update...

  18 January 2021Read More

• macOS Big Sur support update

  The initial public release of macOS Big Sur was made available on...

  20 November 2020Read More

• Release 9.0.22

  INSUL Release 9.0.22, January 2020, is now available.The key fea...

  28 January 2020Read More

System overview

About INSUL

With extensive drop down menus to select materials, and simple choices for construction details you can quickly evaluate different constructions.

INSUL shows a picture of your construction and a graph of the 1/3 octave TLs.

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Technical information

Development on INSUL started in the 90's based on research in the USA by Ben Sharp and others. It has gradually developed into a unique tool that incorporates the best of many research papers published over the last 20 to 25 years.

INSUL can be customised for particular materials (for instance a particular manufacturer's plasterboard).

Prediction Software Inc

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Gesture Control Software

Download INSUL

You can download a trial version of INSUL to evaluate for yourself.

Should you decide to purchase INSUL you may contact Marshall Day Acoustics Ltd, or one of our distributors.

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