EASE® JR uses a statistical approach based on Sabine and Eyring formulas for the computation of the reverberation time.
This method assumes that the sound field inside the room is diffuse. These kinds of sound fields are more commonly encountered in rooms where the absorption is homogeneously distributed over its surfaces, and where its geometry does not propagate concentration of energy in specific directions.
EASE JR is especially helpful:
- When the project’s focus is the design of sound systems and the evaluation of the system’s performance in the room. In these cases, this calculation method will provide reliable results.
- For the simulation of the sound system coverage on wide-open areas.
- For a rough preliminary investigation of more complex rooms to get an initial overview. This can be in the conceptual or preliminary design phase of a project, when you need to weigh the investment of resources as efficiently as possible and need to quickly get a good assessment of the project´s requirements.
- When the room behaves statistically and its reverberation time can be measured on site to be entered in the program. In these cases you do not need to worry about uncertainties in the selection of the room’s surface materials, or even about the room geometry data.
- For superficial evaluation of the behavior of early reflections in the room (up to the 3rd reflection order).
This simplified approach requires the least amount of time and data to obtain answers about the room’s acoustics and the performance of a sound system in the room. It can be seen as a good starting point for performing acoustical and electro-acoustical simulations.
With respect to the room entry in EASE JR there are no feature limitations compared to EASE Standard. One can fully enter or import a model with a complex geometry in EASE JR. That is why large consulting offices often use EASE JR to draw models that will then have its full room response calculated on powerful server computers running EASE Standard and the AURA Module.
Typical room examples / use cases are:
Rooms with little absorption and relatively simple shape, or with geometries that do not propagate concentration of acoustical energy such as conference rooms, typical classrooms, and office spaces with little absorption.
Note: The coverage and performance of the sound system itself can be simulated in any room or open areas.
- Complete software program for construction and acoustical simulation of rooms and design of loudspeaker installations used within
- Easy and quick 3D modeling with parameter-controlled room prototypes
- Automated generation of standard shapes such as blocks, columns, cupolas, etc.
- Grouping of elements to form objects for easy multiple usage
- Open GL 3D rendering
- Import/export of files in AutoDesk DXF format, as Google SketchUp files or in text format
- Extensive, detailed loudspeaker database including over 90 manufacturers und more than 3.000 models
- Realistic simulation of line arrays and steered loudspeaker columns using complex data
- Large database of wall materials
- Mapping of all essential acoustic parameters onto freely configurable audience areas and all other surfaces:
- Direct SPL, total SPL,
- EArly total SPL L7, L50, L80 and defined by user,
- Direct/reflected sound ratios,
- Intelligibility STI according to IEC 60268-16:2003 and ALcons,
- Reverberation time RT, T10, T20, T30,
- Early Decay Time EDT,
- Clarity C7, C50, C80 and defined by user,
- Critical distance,
- Arrival times, initial time delay gap ITDG,
- Loudspeaker aiming and loudspeaker coverage overlap
- All calculations can be done on the basis of statistical reverberation models according to Eyring/Sabine or measured reverb times
- Simple raytracing to visualise reflexions up to third order with a maximum of 1.000 rays per loudspeaker
- VISION rendering module including lightsource editor and surface editor to produce photorealistic previews
- Auralisation of direct sound
- Generation of sound propagation videos within raytracing limits
- EASE SpeakerLab to generate complex new loudspeaker data files in GLL format including configurable loudspeakers, line arrays, or steerable loudspeaker columns with all their parameters
- Version Comparison
Full Licence Simulation Software, 1 User Key
Includes a free license for the next major release, EASE 5 JR.
The End User License Agreement for EASE 4 (dated March 12, 2018) applies.