This lecture aims at providing the basics of Active noise Control, with a specific highlight on the Electroacoustic Absorbers concept developed in the lab. Applications to real life cases will be adressed.
The outline of the lecture is as follows:
Chapter I:
Linear acoustics
& Introduction to active noise control
Historical overview of
ANC
Sound
propagation in 1D
Superposition
of sound
Standing
waves
Refraction
of sound / absorption
Chapter
II: Active noise control principles
Principle of
active noise control
Feedforward
and
feedback principles
Control
algorithms
Chapter
III: Electroacoustic
transductions
Transductions
and models (actuators, general issues on arrays of actuators, sensors)
Sound
sources optimization for active control
Chapter
IV: Electroacoustic
absorbers
Shunt
loudspeakers
Active
control of acoustic impedance
Application
to low-frequency room
modes damping
- Professor: Hervé Lissek
- Teacher: Vu Thach Pham