Courses

Electronics and Electroacoustics for Sound Engineering

The Electronics and Electroacoustics for Sound Engineering (EEASE) course aims to provide in-depth knowledge on electronic devices, electronic circuits, and systems used for the acquisition, processing, recording, Analog-Digital Conversion of audio signals.

The course includes a laboratory part where the students can work hands-on with a professional analog mixing console using multi-track sources, to emulate a live session, with three main outpus (Left/Center/Right), two Control-Room lines (Left/Right) and one on-stage monitor.

Link to WeBeep page [A.A. 2022-2023]: https://webeep.polimi.it/course/view.php?id=10045

Main topics:

Solid state electron devices for audio systems: BJT, JFET and MOSFET transistors: static and dynamic characteristics and parameters. 
Thermionic valves for audio systems: diode, triode, tetrode and pentode: physics, static and dynamic characteristics and parameters.
Electronics for audio signal analog processing: single and multi stage transistor and valve amplifiers, signal transformers, preamplifiers, differential and instrumentation amplifiers, balanced input and output stages, phantom power supply, gain control, summing amplifiers, active filters, Baxandall tone control, resonant filters, graphic and parametric equalizers, voltage control amplifiers (VCA), gate amplifiers, compressors. 
Mixing consoles: Analog and digital console architecture, preamplification, equalization,  aux and group sections, pan pot, VCA section, mixing matrix, insert, buses, output modules. 
Noise in electron devices and circuits: electronic noise: physics and models, noise power spectral densities, r.m.s. values; thermal, shot, 1/f noises. Noise characteristics of resistors, diodes, BJTs, JFETs, MOSFETs, Thermionic Valves. Noise model of amplifiers. Noise in multi-stage amplifiers. 
Signal distortion in electronic circuits: distortion in BJT and FET amplifiers. Distortion analysis and measurement. 
Power amplifiers: Class A, AB, C, D output stages; efficiency, distortion, output impedance. Specifications of Professional high power amplifiers.

Didactic Seminars and Industrial Collaborations:

Over the years master course in EEASE hosted several didactic seminars and promoted the realization of theses work with several national and international industrial collaborators, including K-Array, Bowers & Wilkins, Faital, B&C Speakers, Outline and RCF.