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
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 Trimble 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
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.
Versions & Prices
- Import of image files and EASE models
Import of image files, Trimble 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
Auto-arrange function for fast layout of ceiling-mounted sound systems.
- Ceiling- and wall-mounted sound sources
Insertion and modification of individual ceiling- and wall-mounted sound sources.
- Multiple Views
Top view, side, and front view for easy loudspeaker placement and intuitive investigation of sound distribution in the vertical plane.
- SPL Mapping
Mapping of Direct SPL (Z or A-Weighted), Total SPL (Z or A-Weighted), S/N Ratio.
- Room acoustic calculations
Room acoustic calculations based on definition of reverberation time or assigment of acoustic materials to surfaces according to Eyring.
- STI Mapping
Mapping of speech intelligibility as STI (IEC 60268-16), CIS, ALCons.
- Different bandwidth analysis
Analysis in 1/3rd octave, 1/1 octave, 3/1 octave bandwidth or broadband, frequency range from 100 Hz to 10 kHz.
- Statistical analysis of coverage
Relative mapping function and distribution graph for statistical analysis of coverage.
- Frequency response plots
Frequency response plots for multiple receiver locations, relative or absolute display.
- User-defined mappings
Section plan for user-defined mappings in the vertical plane.
- Printable reports
Printable report document including all results and drawing details.Document
Export of drawings
Export of drawings in AutoCAD DXF, Trimble Sketchup, EASE formats or as image file.
EASE based calculation engine
Calculation engine based on EASE 4.4 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.
Metric and US units
Display and data entry in metric units or US units.
User-defined colors and window layout.
Supported Brands & Database
- Supported Brands Table
- Loudspeaker Database