Based on architect requirements and designing for each individual room, as well as on international (or local) standards Reverberation Time (RT) of the room(s) is predicted and calculated through certified software tools. Any further RT improvement is proposed including method of applied acoustic materials next to architect’s approval. Calculations and documentation are submitted into this consulting study (specifically when real measurements RT10, RT20, RT30, or RT60 have been selected in a room). Simultaneously, Acoustic Quality Parameters would also be calculated and analyzed, specifically when these are indicative to meet project requirements (e.g. Time Arrivals, Intelligibility scores, Bass ratio, Clarity, Definition, Strength of Sound, etc.).  A total Engineering Report of Room Acoustics is submitted to architects or individual customer, with discussion and suggestions.