ADA Acoustics & Media Consultants GmbH


Room and Building Acoustics, Noise Control,
Sound System, Audio and Video design, Sound reinforcement
Measurement, Consulting and Reports

ADA Acoustics & Media Consultants GmbH

After the defeat of the German division, and upon meeting the objective requirements, the engineering firm ADA Acoustic Design Ahnert was initially founded with two colleagues. From day one, the software program EASE, which was at that time still DOS-based, was available. As a result, the feasibility of room- and electro-acoustic designs could be efficiently verified. Large projects during the early 90s, such as the planning of a new sound reinforcement system for the German Opera (Deutsche Oper) in Berlin, supported the start-up phase.

A similar experience was gathered during the reconstruction of the Plenary Assembly of the Parliament in Ankara, where in 1996, for the first time, a fingerprint system for the identification of the Members of Parliament was introduced, which is still in operation in its original form till today. The number of awarded contracts in the country and abroad was then increasing as well as the number of employees. In 2010, the activities profile of the sole-property company ADA Acoustic Design Ahnert was transferred to ADA Acoustics & Media Consultants GmbH. Major tasks are still ahead of our team, such as the extensive Al Maktoum International Airport, which is currently under construction and is intended in its first construction phase to serve around 120 million passengers per year.

ADA - a subsidiary of WSDG

Walters-Storyk Design Group | WSDG

Walters-Storyk Design Group | WSDG, a globally active engineering company, is your contact for all aspects of acoustics and system integration in construction projects, especially consulting, planning and engineering for architectural integration, room, building and electroacoustics, communication, audio-video systems, Information systems, music production and entertainment venues. Our clients' projects include cultural, conference and congressional venues, multimedia rooms, music and media production and broadcasting facilities, transportation hubs, sports venues, gastronomy, educational institutions, churches and many other types of projects. In addition to pure technical planning, WSDG also takes part in strategic processes, compiles submission documents, supervise installations, carries out acoustic measurements, evaluations and programming, and supports projects from the planning, construction and acceptance phases to the training of end-users. more ...

Planning Process of Sound Reinforcement Systems

Particularly with the introduction of film soundtracks, it became essential to consider the locations of loudspeakers and their quality.
The listener in this case does not distinguish whether the hall itself has very poor room acoustics or it has a poor loudspeaker system. For him, it is perceived that the sound reproduction is bad and he/she judges the room as a whole as "acoustically deficient". Therefore, the planning of sound reinforcement systems has to focus on alleviating the acoustic deficiencies of rooms in a suitable manner by employing the selected sound reinforcement systems.

These computer software packages were developed by a team of SDA Software Design Ahnert and, in addition to our many years of experience, represent our most important tool in the planning of sound reinforcement systems.

The planning is based on a 3-dimensional computer model of the room, which contains all room boundaries and internal surfaces with their acoustic properties.

Some models are made up of more than a thousand faces. Fundamental figures such as the reverberation time can be calculated using this model. Optionally, measured values in reality can also be used as parameters.

ADA has 30 years of sound system design experience. The specially developed CAD program EASE (Enhanced Simulator for Engineers), which has been already tested in many countries, helps with the following procedures:

  • Layout of the audience areas, loudspeakers and seats in a hall.
  • Arrangement of various sources (database of more than 1000 sources, with 5° and one-third-octave resolution, or in the modern GLL format)
    • Calculation of clusters and line arrays using phase information of individual sources Rotation and tilting of the sources
  • Examining coverage through the question: How does the source cover the intended audience area?
  • Direct and total sound pressure level distributions
  • Calculation of energy ratios and different clarity measures
  • Determination of speech intelligibility STI
  • Rendering the simulated results audible with the auralization module EARS

The results gained from EASE can be forwarded to other CAD programs via export routines for further visualization.


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