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 ...

Russian Michael Chekhov-Theater Riga

Riga, Latvia, 2010 - 2011

General renovation
Sound and media systems and stage management

Russian Michael Chekhov-Theater

Eduard Cekhoval

ADA Scope of services:
Building, room and electroacoustics

Project description:
The theater was generally renovated and ADA was appointed to examine the existing acoustic conditions and to develop recommendations for the reconstruction. The main hall is essentially a speech theater and low reverberation is desired, but the measured reverberation time has been found to be too low. A target value of 1.3s was sought, and that is why absorber panels on the rear wall were replaced by  scattering / reflecting surfaces.
Also for the balustrade, sound-scattering surfaces and no absorbing measures were proposed. In the small hall, certain measures were planned as well to reduce the high absorption and to increase the reverberation time.
In contrast to the two very dry rooms, the foyer is very reverberant. Here and in the rehearsal rooms, reverberation times are too long. It was proposed to introduce absorbers to the wall and ceiling areas. For all control rooms, acoustic recommendations were made too.

For the large hall, computer simulations were used to design positions for the installation of the  loudspeakers and especially the subwoofers.

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Russian Michael Chekhov-Theater Riga


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