Characteristics and properties of audio signal and noise cancellation techniques: A theoretical review

Abstract

An increased concern for the environment and human health has generated great interest in noise control in recent times. The techniques used for blocking of unwanted sound called noise are known as noise cancellation techniques which may be classified as active and passive noise cancellation. The purpose of this study is to investigate the technique of active sound cancellation.

Vehicle Cabin Noise Cancellation Model Using Pre-Filter for Improved Convergence Rate and Better Stability

“…The purpose of this research work is to propose an active noise cancellation model by analysing the shortcoming of adaptive algorithms, tested against each other so that adaptive algorithms with better stability, high convergence rate with low mathematical complexity may be designed for application of active noise cancellation techniques in vehicle cabin noise reduction. The algorithms applied for analysis are the least mean square (LMS), normalized least mean square (NLMS), sign-error least mean square (SELMS), signsign least mean square (SSLMS) algorithms [14][15][16].…”

Influence of Amplitude on the Value of Noise in Sinusoidal Signal

“…Noise is unwanted interference in an electrical signal (Motchenbacher, 1993). The noise produced by electronic devices varies greatly because it is produced by several different effects (Kapoor, 2017;Aburuotu, 2021). In communication systems, noise is an unwanted error or random interference of a useful signal.…”