P.E. Mediterranean Acoustics Research & Development Ltd (PEMARD) - Pioneers in Acoustics Software
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      • EASE - Enhanced Acoustic Simulator for Engineers
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      • EASE - EVAC Fast Design of Acoustic Evacuation SystemsFast Design of Acoustic Evacuation Systems
      • AFMG SoundFlow - For the acoustic design of multi-layer structures
      • AFMG Reflex - For the design and application of diffusers
      • EASE Address
      • EASE Focus - Universal Sound System Modeling in 3D
      • FIRmaker - Put Your sound Where It Belongs!
      • EASRA - Electronic and Acoustic System Evaluation and Response Analysis
      • SysTune - Professional Audio Measurement
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EASE EVAC - Fast Design of Acoustic Evacuation Systems

EASE Evac provides an intuitive tool for designing acoustic mass notification concepts in a room, hall or building complex. The 3D simulation software calculates the distribution of direct sound levels as well as total sound levels, the signal-to-noise ratio (SNR) and speech intelligibility (STI, ALCons, CIS).
  • Intuitive room entry in just minutes
  • Precise prediction of SPL and STI
  • Loudspeaker data for all leading brands
  • Extensive reports for calculation, presentation and installation
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The calculation engine of EASE Evac is based on EASE 4.3, the industry standard for electro- and room acoustic modeling.
EASE Evac provides an intuitive tool for designing acoustic mass notification concepts in a room, hall or building complex. The 3D simulation software calculates the distribution of direct sound levels as well as total sound levels, the signal-to-noise ratio (SNR) and speech intelligibility (STI, ALCons, CIS). The latter calculations are based on statistical room acoustics.

The scientific background of EASE Evac derives from the long-term research and development in conjunction with the programming of EASE, the professional electro- and room acoustic simulation software developed by Ahnert Feistel Media Group (AFMG).

In EASE Evac all rooms are defined by a 2D floorplan and a height. This simple approach speeds up modeling tremendously in everyday projects as hallways, foyers, conference rooms or even airport gate areas. EASE Evac offers various alternatives for entering the room. The import of images, AutoCAD DXF-format or Google SketchUp files as well as EASE room models simplifies the building of rooms with a complex layout. Several tools enable a quick modeling from scratch. Projects can consist of more than one room, each with its own room acoustic, defined by entering the reverberation time or assigning wall materials with their absorption coefficient to the surfaces of the room. All calculations are performed in 3D on statistical models by Eyring.

Wall- and ceiling-mounted loudspeakers, horns or sirens can be added to the model and may be positioned individually. Alternatively, the auto-arrange functions will quickly ‘install’ a vast number of ceiling loudspeakers in a user-defined grid. Sound source data is given in the EASE GLL format, AFMG’s primary loudspeaker file format.

Based on the room and the sources defined, the propagation of sound is simulated. Mappings on horizontal and vertical cutting planes visualize the calculation results. These results are shown as broadband or frequency dependent mappings with user–defined frequency ranges between 1/3 octave and 3 octaves, absolute or relative values, and A-weighted or non-weighted. Noise levels can be accounted for in order to perform speech intelligibility calculation according to IEC 60268-16. Both mappings and statistic distribution graphs present the following results:
  • Direct sound pressure level
  • Total sound pressure level
  • Signal-to-noise ratio
  • STI
  • ALCons
  • CIS
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For detailed examination, the frequency response graph shows the frequency dependent pressure levels at user defined positions in the room. The complete system design as well as all results can finally be saved as a ready-to-print report in PDF or RTF format.

Feature Overview

  • Import of image files, Google Sketchup, AutoCAD DXF as well as EASE models as a basis for the entry of room geometry by mouse or in a table.
  • Auto-arrange function for fast layout of ceiling-mounted sound systems.
  • Insertion and modification of individual ceiling- and wall-mounted sound sources.
  • Top view, side, and front view for easy loudspeaker placement and intuitive investigation of sound distribution in the vertical plane.
  • Mapping of Direct SPL (Z or A-Weighted), Total SPL (Z or A-Weighted), S/N Ratio.
  • Room acoustic calculations based on definition of reverberation time or assigment of acoustic materials to surfaces according to Eyring.
  • Mapping of speech intelligibility as STI (IEC 60268-16), CIS, ALCons.
  • Analysis in 1/3rd octave, 1/1 octave, 3/1 octave bandwidth or broadband, frequency range from 100 Hz to 10 kHz.
  • Relative mapping function and distribution graph for statistical analysis of coverage.
  • Frequency response plots for multiple receiver locations, relative or absolute display.
  • Section plan for user-defined mappings in the vertical plane.
  • Printable report document including all results and drawing details.
  • Export of drawings in AutoCAD DXF, Google Sketchup, EASE formats or as image file.
  • Calculation engine based on EASE 4.3 industry standard for electro- and room acoustic modeling.
  • Expandable database of common noise levels, surface materials, 3D objects and sound sources.
  • Supports multiple rooms within one project.
  • Display and data entry in metric units or US units.
  • User-defined colors and window layout.

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What Our Clients Are Saying

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Paragon Acoustic Consultants had been reviewing different room acoustics software packages to standardise the software used within the practice. Various room acoustic packages were considered, however, a number of the software packages considered proved unfavourable due to limitations of room geometries that can be modelled, limited calculation outputs and general concerns that the software was unnecessarily difficult to use for even straightforward tasks. This practice has reviewed Olive Tree Lab Suite and found the software to be user friendly whilst providing a very high level of functionality. Having rented the software and modelled a number of relatively complex room acoustic projects, we are impressed with the software and in particular the very professional back-up and support provided by P.E. Mediterranean Acoustics R&D. At this stage the modelling functions for outdoor sound have not been used, however, having watched demonstrations by Mediterranean Acoustics via computer link–up the external modelling sections of the software look as impressive as the room acoustics modelling.

John Gillott

Acoustics Consultant
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Paragon Acoustics Consultants, UK

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The OTL Team is a delight to work with. Amazingly responsive to questions and requests, and constantly improving the product. When it comes to software development & support, many should look at this company as a model to follow.

Dominique J. Chéenne

Ph.D.
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 INCE, USA

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I would like to appreciate the team of OTL and Premard in terms of their continued support and efforts. OTL has been such a valuable tool that I keep coming back for more. With the new software OTL 4 Pemard has again made an effective tool for Acousticians worldwide.

Abraham Berin

B. Tech E&MT, M.Sc A&A (UK)
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Head of Acoustics, INFOSIGHT, UAE

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​I have been using the OTL Lab application for a number of years, mainly for teaching and demonstrations at undergraduate and postgraduate courses in acoustics and noise control. The program is user-friendly and incorporates an advanced high-level 3D designer tool for setting up virtual acoustic environments, allowing easy setting up of case studies and extracting results and maps for radiation and transmission for noise and other sources.
I find very useful the advanced physics engine for sound propagation which allows for wave-based simulations (plane or spherical) considering also atmospheric refraction. This enables OTL to achieve accurate results especially in large scale setups encountered in environmental studies. The interface for immediate comparison of analytical results with standardized approximations (ISO standards) or simplified computational methods such as ray tracing and image-source models allows for comprehensive evaluations in multiple levels of physical detail. Such features which have been utilized by the members of our Audio and Acoustic Technology group during research projects.
The support by the OTL team was extremely helpful and their response immediate, tackling queries at personal level and providing educational webinars for the students.

John Mourjopoulos

Professor
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University of Patras

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OTL is an appropriate tool for prediction of acoustic adjustments in room acoustics, outdoor environment and industry. It offers flexibility and an ease of the ability to customize. Thanks for the multi-layered structure for impedance, absorption and SRI prediction.

Toufic Attieh

Technical Manager
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Gresam Acoustic & Vibration Engineering, Lebanon

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Although designed for demanding Acoustics applications, Olive Tree Lab has been instrumental in my research and work. Despite its hugely detailed modeling of acoustic properties, primarily addressed to acousticians, through its intuitive interface, it has also proven invaluable for architectural design. Furthermore, the Mediterranean Acoustics team have vastly exceeded my expectations for 'after sales service' and provided a rare blend of scientific expertise and personal care – giving true meaning to the word 'support'.

Ilias Papageorgiou

Architect
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Greece

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We find OTL very intuitive and the customer service spectacular. Once the model was properly configured, the mapping software predicted very accurately and was within +/-5dB in comparison to actual field measurements.  We were able to provide client documents that were clear and intuitive and allowed them to prove compliance with local and state noise ordinances.

Thomas N. Ryan

Senior Consultant
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Technological Design Studios, LLC.

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Pemard did a fantastic job with our custom software application. Costas and Panagiotis were extremely responsive during the development process and were always helpful in immediately addressing our concerns and fixing issues where we found them. The custom software the team developed for us has been of huge help to our room acoustics design process and we could not have done this without their help. I would recommend Pemard to anyone needing custom acoustics software.

Anonymous

Acoustics Consultants
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USA

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  • Home
  • About
    • Philosophy
    • Events & Training >
      • Past Events
  • Publications
    • Papers & Presentations
    • Research and Validation Projects
  • Acoustics Software & Tools
    • Olive Tree Lab Suite
    • Olive Tree Lab - Room Modes
    • Olive Tree Lab Acoustics Lib
    • SONarchitect
    • AFMG - EASE, SoundFlow, Reflex, Address, Focus, SysTune >
      • EASE - Enhanced Acoustic Simulator for Engineers
      • EASE - SpeakerLab
      • EASE - EVAC Fast Design of Acoustic Evacuation SystemsFast Design of Acoustic Evacuation Systems
      • AFMG SoundFlow - For the acoustic design of multi-layer structures
      • AFMG Reflex - For the design and application of diffusers
      • EASE Address
      • EASE Focus - Universal Sound System Modeling in 3D
      • FIRmaker - Put Your sound Where It Belongs!
      • EASRA - Electronic and Acoustic System Evaluation and Response Analysis
      • SysTune - Professional Audio Measurement
  • What's New
  • Services
  • Downloads
  • Purchase
  • Contact
    • Support