ADC	Analog to Digital Converter
ANED	Anomalous Noise Event Detection
ARM	Advanced RISC Machine
ASIC	Application-Specific Integrated Circuits
CPU	Central Processing Unit
EC	European Commission
END	Environmental Noise Directive
EU	European Union
DSP	Digital Signal Processor
FLD	Fisher’s Linear Discriminant
FPGA	Field Programmable Gate Array
GPS	Global Positioning System
GTCC	Gammatone Cepstrum Coefficients
HMM	Hidden Markov Models
ICT	Information and Communication Technology
KNN	K-Nearest Neighbor
LMS	Least Mean Squares Filter
MFCC	Mel-Frequency Cepstrum Coefficients
MSU	Mobile Sensing Unit
PLC	Programmable Logic Device
RAM	Random Access Memory
RLS	Recursive Least Squares Filter
SOA	Service-Oriented Architecture
SoC	System on Chip
SOM	Self-Organizing Maps
SPL	reference signal
SVM	Support Vector Machine
WASN	Wireless Acoustic Sensor Network