Among them is the Standard Mapping feature, which allows a large number of simulations to be performed based on the diffuse field assumptions of statistical acoustics. Measured RT data can also be used for this type of mapping.
Data can be exported in both text and graphic formats. All of the following parameters can be mapped:. This feature makes it easy to detect potential problems and to analyze representative locations in great detail. Maximum and minimum values, standard deviation, average and distribution graph are some of the statistical resources that you can use to optimize the system performance as well as to illustrate the simulation results.
In particular, tenders often ask for coverage figures, such as an STI of 0. In EASE, such information is available on a single mouse click. Distribution graphs can be viewed for all frequencies and all kinds of acoustic results.
Numerous powerful Ray Tracing tools are offered by EASE, ranging from simple Ray Tracing as well as Mirror Imaging to an advanced hybrid method, comprising the most accepted techniques worldwide. Simple Ray Tracing is an excellent instrument for reflection pattern studies. A sound source generates an impulse: a number of particles, or rays are released into the room, propagating at the speed of sound.
As they travel, they lose energy due to air absorption, which is especially noticeable at higher frequencies. Eventually a particle hits a room boundary - or an obstacle - loses more energy, and is reflected back to the room, in an iterative process.
The program keeps track of each particles path, energy and time, until pre-determined limits are reached such as propagation time, reflection order or energy loss. This enables you to visualize and study the propagation of sound throughout the room.
This tool stores information about all reflections so that, ray by ray, you can identify potential geometry problems and evaluate possible solutions. Ray tracing is also a great presentation tool for demonstrating complicated acoustic problems very intuitively to a client.
Both methods are combined in what we call Standard Mapping with Reflections. The find Ray Tracing Impacts feature of EASE is a stochastic approach to model the propagation of sound in the room, giving you the opportunity of performing a comprehensive analysis of reflections that are detected at specific spots — i. This approach uses a Monte Carlo simulation method, and in contrast with the simple Ray Tracing technique, here the number of particles rays is a fundamental factor, determining simulation accuracy and the repeatability of the results.
In many cases , particles or more are used, although EASE is capable of generating higher figures if needed. This essential utility registers information for those rays that pass within a meter of a chosen point, e.
The detailed data — ray arrival time, reflection order, direction of incidence and energy level for all 21 frequency bands covered by EASE - can then be sent to other EASE modules, such as the Probe and EARS programs, so that post-processing, in-depth investigations, analysis of several objective acoustical parameters and critical evaluation of subjective impression can be performed.
This tool also starts a calculation that looks for all rays that hit specific points Listener Seats within the room, so that Impact files for in-depth analysis can be generated and each ray can be analyzed.
It is the most accurate approach, also generating exact temporal information. This method can be considerably faster than the stochastic Ray Tracing routine, as long as reflections of low orders, or a relatively small number of surfaces are considered.
However, the calculation time increases significantly with the reflection order and the number of surfaces. Because of this and the inability of the algorithm to account for scattering effects, large and complex rooms are generally investigated using Ray Tracing Impacts or the AURA raytracing module. AURA is composed of a hybrid Ray Tracing engine, which uses both a deterministic Image Model Cone Tracing and Stochastic Ray Tracing methods, taking advantage of the best they can offer to speed up the computation without compromising accuracy.
High-end algorithms allow you to use all resources available on modern machines with bit CPUs and several cores, as well as large amounts of RAM and disk space. This guarantees considerable reduction of calculation times, which are especially important for large or complex projects! AURA generates full-length impulse response data. Only in this manner late reflections as well as coupled reverberant spaces can be analyzed reliably and subsequently auralized by the EARS Module.
The effect of sound scattering by structured surfaces and surface materials is only taken into account with AURA. The Wall Material database module includes a Scattering Wizard that allows real-life approximations of scattering coefficients. Results should be closer to reality and less tuning of the scattering coefficients should be necessary.
From the gathered information about rays that impact at particular locations in the room - by means of the Ray Tracing or AURA modules — detailed investigations through the Probe program and its extensive views and calculations can be made.
Discover yet a number of other figures and utilities, such as the total energy, the diffuse energy, the direct sound energy, and more! Auralization is the process of simulating and making audible the effects of playing a known reference sound, such as program material, through a defined loudspeaker system in a particular space. It allows listening to the room before it is even built. An invaluable tool for the acoustic consultant and sound system designer.
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