» Acoustical Design
Acoustical design in architecture is an activity carried to satisfy the acoustical comfort limits for specific performances attributed to enclosed or semi-enclosed environments. The quality of acoustical design is directly related to the sufficient implementation of architectural program. For instance, in a conference room if acoustical comfort levels are not satisfied, the lecture could not be heard or even if heard, could still be unintelligible for the audience. In such a case it is hardly possible to carry the desired activity within identified room.
In room acoustics some important comfort quantifiers could be summarized as reverberation characteristics of a space, the absence of acoustical defects such as echoing, the level of clarity and pressure of the sound in accordance with the proposed performance, the even sound distribution throughout the space, proper background noise levels defined by specific criteria and if exists the proper room response for electro-acoustic support systems in providing sufficient and undistorted sound in audience seating locations. 
Design process of room acoustics could start simultaneously with the interior design project execution, whereas building acoustics decisions should initiated much earlier in architectural construction documentation phase while main partitions, slabs or ceilings are in the process of finalization. It is always an advantage to held architectural, interior design and acoustics studies concurrently and let the mutual feedbacks augment the quality of project. 
Every single space that houses audio related activities requires acoustical design. The most sensitive spaces in acoustical terms are opera houses, concert halls and recording studios, each necessitating different acoustical environments for the best of the performance. In addition to that, theaters, movie theaters, conference halls, multipurpose halls, meeting rooms, classrooms, sacred buildings such as mosques, churches or synagogues, libraries, hospitals, museums, shopping centers, factories and work stations, multi storey residence and office buildings, restaurants, leisure spaces such as nightclubs, cafe and bars, shooting ranges and some other spaces that necessitate the intelligibility of public announce systems such as airport terminals, subway stations, train stations, sports halls, swimming pools and sports arenas are examples of spaces where building and room acoustics design are highly implemented. 
» Acoustical Consultancy as a Profession

Room acoustics, noise and vibration have major impact on people's daily activities. In the built environment these issues affect interior design, architecture, engineering, site planning and even infrastructure. Acoustical consultant forms the link between all these different disciplines. The term of acoustical consultant necessitates a further definition especially for the professionals and professions of this country.

» Acoustical Consultant

Develops innovative and practical solutions to enhance desirable sound for specified functions and mitigate noise Focuses on the aural comfort of the user Respects and often contributes to the visual as well as acoustical aesthetics of the space Understands and supports the function of the facility Seeks to solve real world problems affecting individuals, businesses, institutions, and the community Works in harmony with the project leader and the project architect, other members of the design team, regulatory agencies, and the public Plays the role of advisor, designer, and mediator - often all three on the same project Strives to meet or exceed all schedule and budget parameters Every project undertaken in acoustical terms is unique. Assignments could be similar in nature, but no two are identical. Acoustical consultant could have a background out of a wide array of disciplines including engineering, physics, architecture, industrial hygiene, and performing arts, together with music and entertainment. It is more essential that the acoustical consultant or the consultancy firm has enough experience and qualifications to line up with the goals and objectives of the project. The provision of consulting services considers a privileged and close relationship between the consultant and the client in the long lasting trip of design and procurement of high quality aesthetically sound spaces.