Introduction to Electroacoustic Systems
Mendel Kleiner · 2013
This chapter introduces the concepts and ideas that will be used later in the book. The main use of electroacoustics is in the design of systems for the pickup, recording/ transmission, and reproduction of sound in the audio range between 20 Hz and 20 kHz. However, just frequency response is not sufcient for quality; for faithful audio signal reproduction, there should be inaudible level and time delay differences between various parts of the audio spectrum. The sound also needs to be free of noise and signal degradation, distortion, at all sound pressure levels of interest to hearing. The spatial properties of sound reproduction are important as well; many electroacoustic systems aim at retaining some of the spatial properties of the sound eld and its reverberation.