ME 661 Acoustics Metrology & Materials
Topics covered in this class include both passive and active acoustical measurements. The passive measurements, covered in the first quarter of the class and will include digital audio recording, environmental noise, reverberation in architectural spaces and radiated sound power measurement. The remainder of the semester will focus on active technics where a computer-generated sound is broadcast and then recorded after it has interacted with some target or environment. This section of the class will start with a discussion of excitation signals including pulses, chirps and noise as well as speaker / microphone characterizations. With this background established we will then cover acoustic materials and impedance tube measurements of surface impedance, reflection, and absorption. Experimental results will be compared to published values and simple model of acoustic interaction with porous materials. Prerequisite: ME 561 or equivalent.
Prerequisite
ME560