publication . Bachelor thesis . 2011

Performance Analysis of Adaptive Algorithms based on different parameters Implemented for Acoustic Echo Cancellation in Speech Signals

Kotte, Swathi;
Open Access English
  • Published: 01 Jan 2011
  • Publisher: Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap
  • Country: Sweden
Abstract
Echo cancellation in voice communication is a process of removing the echo to improve the clarity, quality of the voice signals by suppressing the silence signal which prevents echoes during transmission through networks. There are two types of echo in voice communication: Hybrid echo cancellation and Acoustic echo cancellation. Hybrid echo is generated by the reflection of electrical energy by a device called Hybrid. Echo suppressor’s helps to minimize the hybrid echo’s to produce clarity voice signals. The coupling problems between the telephony speaker and its microphone lead to the acoustic echo’s. The direct sound from the loud speaker enters into the micro...
Subjects
ACM Computing Classification System: Hardware_ARITHMETICANDLOGICSTRUCTURES
free text keywords: least mean square (LMS) Algorithm, Leaky Least mean square (LLMS) Algorithm, Normalized Least Mean Square (NLMS) Algorithm and Recursive Least Square (RLS) Algorithm, additive white Gaussian noise, Return Loss Enhancement (ERLE), signal to noise ratio
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