As part of our module we are required to visit some interesting acoustic space and perform Impulse Response Measurements. This process was new to all four members of my group and therefore, we decided to perform a trial session in the studio to make sure that we can operate everything correctly before moving to the intended acoustic space. In order for the measurements to be obtained, a sine sweep covering the entire hearing spectrum was played through a Genelec speaker and recorded using a Soundfield ST450 microphone. Deconvolution was then performed in all 4 channels to obtain the impulse response of the room.
Once this task was completed, the process was repeated inside the Anechoic Chamber. The purpose was to investigate the frequency response of the microphone as well as familiarise with recording inside the chamber. The sweep recorded was later on analysed using MATLAB.
Figure: Obtaining Impulse Response Measurements inside the Anechoic Chamber
George Sarantinos 