Upgrade AURA 3 Module -> AURA 4 Module

Version 4.4
Upgrade AURA 3 Module -> AURA 4 Module

AURA is an add-on module for EASE Standard that allows you to perform advanced acoustical investigations. This is made possible by AURA´s hybrid ray-tracing engine as well as its multi-threading capability, which considerably reduces calculation times for full impulse responses.

It was developed in cooperation with the renowned Institute for Technical Acoustics at RWTH Aachen University. The AURA name is an acronym for Analysis Utility for Room Acoustics.


The new version 4 of the AURA module

Based on a new 64-bit core, AURA 4 is capable of using the entire RAM of 64-bit Windows operating systems. This memory improvement lifts the RAM limit for AURA mappings and for AURA results used for auralization. It also makes AURA 4 significantly faster. Calculation times are shortened by up to a factor of 2-3 for typical projects, when compared to AURA 3. As a result, the new version facilitates faster and more accurate project designs.

High CPU Utilization - 64-bit Engine.png

With AURA 4 it is easier for you to:

  • Compute mappings and auralization results with high resolutions.
  • Calculate projects that contain a large number of loudspeakers or complex speaker systems such as line arrays and steerable columns.
  • Create auralizations for medium-sized to large projects. Binaural and B-format results computed with AURA response are not limited anymore.
  • Select groups of loudspeakers for AURA mapping recombination.
  • Achieve a more realistic simulation of reflections and reverberation with the new S-curve. For most projects it is difficult or impossible to determine accurate information about the scattering characteristics of the surfaces. That is why the new default S-curve of scattering coefficients developed in cooperation with RWTH Aachen is important. Results will be closer to reality and less tuning of the scattering coefficients should be necessary.


Additional functionality improvements compared to AURA 3 are:

  • In the recombination step after the calculation run, not only Loudspeaker Groups but also Objects can be selected now as well.
  • Files used for auralization, such as BIR and B-format can now be generated without creating RSP files first.
  • Defining the output folders and file names was improved as well.

Maintenance updates and support for AURA version 3 will end on July 31, 2023.



Version 4 of the AURA module includes the following new resources when compared to AURA 3:

  • 64-bit engine: AURA Mapping and AURA Response auralisation results can use all RAM available on 64-bit computers. This memory improvement lifts the RAM limit that typicaly occured in AURA 3 calculations for large projects. As a result of this, larger areas, more loudspeakers, and a higher spatial resolution can be considered for AURA simulations. 
  • Shortened calculation times: calculation times are shortened by up to a factor of 2-3 for typical projects.
  • New default S-curve of scattering coefficients
  • Select Objects and Groups of loudspeakers for AURA mapping recombination
  • BIR and B-format files can be generated directly
  • Defining the output folders and file names was improved

View all features included in AURA 4  >

Version Comparison

Feature / Version EASE JR EASE Standard AURA Module* EARS Module* InfraRed Module**
Extensive databases
Loudspeaker and Wall Material
Complete set of modeling tools      
Architectural Rendering Module
Import and Export
DXF and SKP drawing files
Reverberation Times
Eyring and Sabine
Standard Mappings
Based on Eyring or Sabine Reverberation Times: 
Direct SPL, %AlCons, STI, RaSTI, Pressure Level, Clarity Ratios, Total SPL, D/R Ratio, Critical Distance, Arrival Times, Loudspeaker Overlap, ITD (Initial Time Delay) Gap, Loudspeaker Aiming
Open GL Viewer
Direct Sound Auralization      
Speaker Base, SpeakerLab and Material Base
Entry and creation of Loudspeaker and Wall Material data
Ray Tracing capatibilities      
Ray Tracing Movie module      
Mapping on Room Surfaces      
Local Ray Tracing        
Ray Tracing Impacts
Local reflections study
Local Decay Times
Quick check RT at various spots in the room to verify Accuracy with Eyring and Sabine provided RT times
Mapping with Reflections        
Acoustical Probe
Measurement microphone simulation:
Reflectograms (EFC/ETC displays), Waterfall displays, Pulse Directionality (hedgehog) displays, Schroeder Reverberation Times, Modular Transfer Function, STI Intelligibility Projections, Impulse Response files
Mirror Image
Ray Tracing routine
Feature / Version EASE JR EASE Standard AURA Module* EARS Module* InfraRed Module**
Hybrid Ray Tracing routines
Best approach for high quality calculations at reduced Time
Full multi-threading support
For high speed calculations of impulse responses
64-bit engine
AURA Mapping and AURA Response auralisation results can use all RAM available on 64-bit computers

Calculations according to ISO 3382:
Early Decay Time (EDT), Reverberation Time (T10, T20, T30), Lateral Fraction (LF) & Lateral Fraction Coefficient (LFC), Clarity (C80), Definition (D, C50), Sound Strength (G), Center Time, Echo Criteria for Speech & Music, STI & Articulation Loss

LF and LFC
Lateral Fraction and Lateral Fraction Coefficient
Echograms and Histograms
For detailed investigation of impulse responses
Precise calculations
Consideration of Scattering coefficients
Response files in Ambisonics B-Format        
Full Off-line and Real Time
Different noise signal generation        
Mix diverse sources for auralization
E.g. to simulate effects of masking noises
Binaural Auralization        
Infrared transmitter/modulator database        
S/N investigation        
Cable length effect        

*  Can be combined only with EASE Standard.          ** Can be combined with EASE JR and EASE Standard.

End of support AURA 3
How can I check which version of the AURA module I am currently working with?

There are two ways to check which version of the AURA module you are currently using.

Directly from the software application EASE:

  1. Start EASE
  2. Select > Help > About
  3. Check if in the parentheses behind "Full Version" "Aura 3" or "AURA 4" is shown.


From your AFMG Download Portal account:

  1. Select "License Guard Setups"
  2. Then, check if under EASE Guard Setups, "A" or "4" is shown in the User ID. Or if "AURA 3" or "AURA 4" is shown in the Version.



Please note: Maintenance updates and support for AURA version 3 expired on July 31, 2023.

The upgrade to version 4 is available here.


Upgrade AURA 3 Module -> AURA 4 Module


Upgrade AURA 3 Module -> AURA 4 Module

1 User Key for an existing license ID
This upgrade can be purchased for any AURA Module with a version below 4.0.
The End User License Agreement for EASE 4 applies.

750 EUR (net)
Purchase Options

AFMG® distributes its software directly, worldwide, and in some countries with the support of international distributors. Various purchase options are available:


By clicking the Add to Cart button in the price list below you will be transferred to the AFMG Online Store.


To request written quotes or for any sales-related questions please contact us directly.


If you are looking for pre-sales support in your language or local purchasing options, please check our Distributor´s Network.


Educational institutions can apply for special Educational or Research License Offers.

Upgrade Note

If you purchase an upgrade or module for only a subset of User Keys, we will split your license. Your existing license will remain with a reduced number of User Keys. You will receive an additional new license with the new feature scope for the respective number of User Keys.

General Terms & Conditions

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6.4   In all other cases (with offline orders or where a CD or other physical item has been ordered) delivery will be within three weeks unless otherwise specified in the confirmation of contract. The delivery period begins on the day of confirmation of contract. The software developer will enter the date on the confirmation.

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6.6   Where the software developer is accountable for failing to honour a delivery deadline the customer may extend the deadline by an appropriate period. Only when this extension period has elapsed without delivery being made can he withdraw from the contract.

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8. Claims arising from defective goods

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9.1   The software developer is fully liable for loss of life, bodily harm or compromised health resulting from negligence and breach of obligations on his part or from deliberate or negligent breach of obligations by one of his agents or assistants.

9.2   In the case of other liability claims the software developer shall be fully liable only where the software is found not to possess the advertised features and functions or where it can be demonstrated that the software developer or his agents or key employees are guilty of premeditation or gross negligence. Where the fault can be attributed to other assistants or lower-echelon employees the software developer shall be liable only in respect of ordinary negligence as set out in Point 6.4.

9.3   In respect of ordinary negligence the software developer is liable only where he is in breach of an obligation whose observance is of special importance for the fulfilment of the purpose of the contract (cardinal obligation).

9.4   Barring invocation of Point 9.1, liability for loss of data is limited to the standard cost of recovery that would have been incurred in the course of regular backing up of data commensurate with the risk of loss. Liability as set out in the Product Liability Act (Produkthaftungs­gesetz) remains unaffected.

9.5   The above provisions also apply in favour of the colleagues and assistants of the software developer.

10. Final provisions

10.1   Contracts between the software developer and the customer are interpreted exclusively in accordance with the law of the Federal Republic of Germany.

10.2   Place of fulfilment for both parties is the office of the software developer in Berlin. Berlin is also the legal venue.

10.3   In a case where one or more provisions agreed on by the contracting parties become, or are found to be, invalid, this shall not affect the validity of the remaining provisions. An invalid provision shall be replaced by one that most nearly reflects the purpose of the original provision as intended by the contracting parties. If the provisions of this contract are found not to cover all eventualities, the lacuna is to be filled with a provision or provisions that the parties would have agreed on if full account had been taken of the legal position, the matter at hand and the legitimate interests of each party.


Version: 1.3
Berlin, December 1, 2021

Additional Sales Terms

Additional Sales Terms

  • Prices do not include VAT. Depending on the origin of the customer and the type of product, VAT might be charged in addition to the net price.

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  • All prices are subject to change without prior notice.

  • At any time, the price provided in Euro (€) is valid. Prices provided in other currencies are approximate and provided for rough orientation only.

  • In principle, only one discount can be applied to any purchase.

  • If authorities in the land of the customer's origin or the customer himself demand original documents in paper form, the customer accepts additional courier costs of 60 EUR within the EU or of 120 EUR per shipment outside of the EU. These costs need to be paid by the customer prior to shipment and will be noted as a separate line item on the final invoice. If the customer decides to employ his own forwarder, only the costs for the original document (30 EUR) apply.

  • If you purchase an upgrade or module for only a subset of User Keys, we will split your license. Your existing license will remain with a reduced number of User Keys. You will receive an additional new license with the new feature scope for the respective number of User Keys. Does not apply for EASE 5 (1 User per license).

  • Certain license-related services, updating of company data in licensed programs, transfer of licenses etc. may be possible at a service charge of 50 € net.

  • Delivery principally is by download from our website. After settlement of payment and credit entry, you will receive an email with your license information.

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EASE 4 - End User License Agreement


AFMG is a worldwide leader in the development of software for the pro-audio industry. AFMG has developed, amongst other programs, and is the sole owner of, the Software EASE, currently available in its version 4.4. (hereinafter the “Software”). The EASE software suite provides sound system designers and acoustic consultants with a set of tools for all aspects of professional practice, from detailed, realistic modeling and simulation of venue acoustics and sound system performance to informative and engaging client presentations, as well as professional data assessment and verification. The Software is provided by AFMG or authorized distribution partners (AFMG’s “Partners”).

This end user license agreement (“Agreement”) governs the legal relationship between AFMG Technologies GmbH, Borkumstr. 2, 13189 Berlin, Germany (“AFMG”), and the commercial end user of the Software (“User”). As AFMG does not sell the Software to private end users, this Agreement does not apply to those. By downloading the Software from AFMG’s or its authorized Partners’ websites, the User unconditionally accepts the terms and conditions of this Agreement.


1.    Subject of the Agreement

1.1.    AFMG provides the Software for download from its web portal available at http://downloads.afmg.eu. AFMG provides the User with the number of user keys purchased by the User. Each user key purchased by the User (“User Key”) allows for the User to use the Software on one (1) computer at a time while the installation on several computers is allowed.

1.2.    The establishment and maintenance of a functional hardware and software environment is the sole responsibility of the User. The minimum system requirement for the installation of the Software is Windows 7.

1.3.    AFMG does not provide and has no obligation to provide the User with the source code of the Software.

1.4.    The User shall observe all instructions provided by AFMG for the installation and operation of the Software.


2.    Granting of Rights

2.1.    AFMG grants the User a perpetual, non-exclusive, non-sublicensable and non-transferable right for the term of this Agreement to use the Software on a number of computers only. This number corresponds to the number of User Keys purchased from AFMG or AFMG’s Partners.

2.2.    Reproduction of the Software is only permitted insofar as it is necessary for use of the Software in compliance with this Agreement. The User may produce backup copies of the Software as is necessary and in keeping with good practice. Backup copies on removable data storage media must be labeled as such and must bear all copyright and proprietary notices.

2.3.    The User is not authorized to change, adapt, arrange or otherwise modify the Software unless expressly allowed under the applicable copyright law or upon prior written consent by AFMG.

2.4.    The User must not transfer or sublicense the Software to third parties without prior written consent by AFMG.

2.5.    AFMG remains the sole owner of all rights in and to the Software and reserves all rights not granted to the User under this Agreement.


3.    Technical Support and Maintenance Updates

3.1.    AFMG shall provide the following technical support services (“Technical Support”) to the User:

•    E-mail support within AFMG’s regular business hours;
•    Telephone support within AFMG’s regular business hours;

Technical Support shall be provided for a period of six (6) months after the date of purchase of the Software.

3.2.    Furthermore, AFMG shall provide the following maintenance support services (“Maintenance Updates”) to the User:

•    Bugfixes for the Software;
•    Adaptations of the Software in the event of changes to the current operating systems;

The scope and provision of Maintenance Updates lies in the sole discretion of AFMG. Maintenance Updates should be provided unless terminated by AFMG. AFMG will notify the User at least one (1) year prior to the termination of Maintenance Updates.

3.3.    Technical Support and Maintenance Updates shall be provided by AFMG free of charge.

3.4.    AFMG is entitled to terminate the provision of support services for good cause. In this event, AFMG shall notify the User about the termination. With the termination of the support services, all rights to use the Software and/or the Upgrade (see Section 4) shall immediately cease and the User is no longer entitled to use the Software and/or the Upgrade.


4.    Major Upgrade (EASE Version 5) - Only applicable for licenses purchased from March 18, 2018 until October 04, 2022

4.1.    Every purchase of the Software after March 12, 2018 and before October 04, 2022 and every purchase of additional User Keys for the Software after March 12, 2018 and before October 04, 2022 includes a free license for EASE Version 5 for each purchased User Key.

4.2.    The free license of EASE 5-SE will be delivered on request and can be downloaded from AFMG’s web portal. New EULA and DPP for EASE 5-SE apply.


5.    Prices

5.1.    The fees to be paid by the User to AFMG and details regarding the available packages are specified in the price list in the version applicable at the date of the conclusion of this Agreement. The price list is available on AFMG’s website at https://www.afmg.eu/purchase.

5.2.    AFMG shall provide the Software after prepayment by the User. AFMG shall provide the respective download link by e-mail generally within two (2) business days.


6.    Limitations of liability

6.1.    AFMG shall not be liable for any claims for damages or any claims for reimbursement of wasted expenses, regardless of the type of violation involved and regardless of the legal grounds, except:

a)    In cases of damage from injury to life, body or health due to negligent breach of duty by AFMG or intentional or negligent breach of duty by a legal representative or a person used to perform an obligation of AFMG;
b)    In cases of other damage arising from a grossly negligent breach of duty by AFMG or from an intentional or grossly negligent breach of duty by a legal representative or a person used to perform an obligation of AFMG;
c)    In cases involving personal injuries or damages recoverable under the German Product Liability Act (Produkthaftungsgesetz), where liability shall be governed by applicable law, regardless of default.

6.2.    Except as provided in Section 6.1. above, AFMG shall not be liable for any damages, including, without limitation, financial losses of any kind.


7.    Indemnification

7.1.    The User shall fully indemnify AFMG from all third party claims, which arise from any illegal, culpable use of the Software by the User. This includes in particular patent claims, copyright claims or other commercial intellectual property right claims as well as claims arising from a violation of personal rights or from the unauthorized collection, storage and application of personal data. The User will indemnify and hold harmless AFMG from all legal fees reasonably incurred by AFMG that are attributable to any such claim.

7.2.    In the event the User learns or must learn that the infringement of such right is imminent, the User shall immediately inform AFMG.


8.    Trademarks

Unless otherwise agreed between the parties in writing, the User shall only use AFMG’s trademarks in accordance with AFMG’s Trademark Guidelines which can be accessed on AFMG’s website at https://www.afmg.eu/trademarks.


9.    Jurisdiction, Governing law, final provisions

9.1.    Any disputes arising from or in connection with this Agreement shall be determined by a court of competent jurisdiction in Berlin, Germany.

9.2.    This Agreement shall be governed by and construed in accordance with the laws of Germany. For the avoidance of doubt, the United Nations Convention on Contracts for the International Sale of Goods (CISG) does not apply.

9.3.    This Agreement reflects the entire agreement between the parties. The parties have entered into no oral or written collateral agreements with respect to the subject matter hereof. Any terms and conditions of the User do not apply. For the avoidance of doubt, it is expressly agreed between the parties that this Agreement shall prevail over any terms and conditions used or referred to by the User.

9.4.    If any provision of this Agreement shall be held invalid, the validity of the remaining provisions shall remain unaffected thereby. Any invalid provision shall, to the extent permitted by law, be replaced by such valid provision as most closely reflects the commercial intent and purpose of the original provision. The forgoing shall apply respectively if any provision shall have been inadvertently omitted from this Agreement.

Version: 1.3
Berlin, September 18, 2023

AFMG Technologies GmbH Company Data

AFMG Technologies GmbH
Borkumstr. 2
13189 Berlin

Prof. Dr.-Ing. habil. Wolfgang Ahnert
Dr. rer. nat. Stefan Feistel
Registered at:
Berlin-Charlottenburg    HRB 115012 B
VAT-ID:    DE261093044