Conservatory buildings, which have a special role among other educational buildings, should have appropriate acoustic conditions for an effective education and teaching. Based on this view, choosing Ankara Musiki Muallim Mektebi Mamak Municipality Conservatory Building as a sample, this study analyzed parameters such as speaking rate, background noise level, suitable spatial dimensions, sound insulation values that should be met in construction components, reverberation time and speech intelligibility. In this context, Insul 6.4 simulation program was used to determine sound transmission losses of construction elements of Ankara Musiki Muallim Mektebi Mamak Municipality Conservatory Building. Environmental noise level, background noise level and sound transmission loss of construction elements were measured. The results obtained were compared to the results of the simulation program; the results were evaluated and suggestions were made for inappropriate conditions.