Acoustic Echo Control

نویسندگان

  • Gerald Enzner
  • Herbert Buchner
  • Alexis Favrot
  • Fabian Kuech
چکیده

This chapter was originally published in the book Academic Press Library in Signal Processing. The copy attached is provided by Elsevier for the author’s benefit and for the benefit of the author’s institution, for noncommercial research, and educational use. This includes without limitation use in instruction at your institution, distribution to specific colleagues, and providing a copy to your institution’s administrator.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Echo Cancellation Using NLMS Adaptive Algorithm

-This paper presents the Cancellation of an acoustic echo. Such echo canceller is essential to control the echoes generated by the acoustic coupling between the microphone and loudspeaker in hands free telephones or teleconferencing applications. Conventional acoustic echo canceller encounters problems like slow convergence rate (especially for speech signal) and high computational complexity a...

متن کامل

Partitioned residual echo power estimation for frequency-domain acoustic echo cancellation and postfiltering

Residual echo arises in hands–free telephony equipment due to insufficient echo canceler convergence, but can be suppressed using a postfilter. The residual echo power spectral density is the most crucial control parameter for both frequency–domain acoustic echo cancellation and combined residual echo and noise postfiltering. In this contribution we present and compare residual echo power spect...

متن کامل

Adaptation Controll Parmeters of Multipath Model of an Adaptive Acoustic Echo Canceller

An overview of acoustic echo cancellation systems is presented. First the basics of echo’s, type of echo’s , why echo canceller are required and what are the difference between echo canceller are explained then the application where they can be used is discussed.. This paper presents applications of acoustic echo control and shows most recent solutions. For some selected applications (LEM) resu...

متن کامل

Thickness Measuring of Thin Metal by Non Destructive with Fuzzy Logic Control System

Non-Destructive Testing & Evaluation methods are developed to inspect and investigate materials and structures. Ultrasonic Testing is an NDT method can be used for measuring the thickness of objects, as one of its significant applications. The objective of this paper is designing and applying an intelligent UT fuzzy control system for evaluating the thickness of thin metal objects in a range of...

متن کامل

A system for speech enhancement in the context of hands-free radiotelephony with combined noise reduction and acoustic echo cancellation

This paper addresses typical problems encountered with hands-free equipment in the context of GSM radiotelephony. We first summarise some important characteristics of the noise field in moving vehicles, and we also describe the acoustical echo phenomenon. We show that, in order to provide sufficiently high speech quality, these hands-free equipments should include noise reduction (NR) and acous...

متن کامل

Acoustic Echo and Noise Control: Where Do We Come from – Where Do We Go?

In this paper we describe a short history of acoustic echo and noise control systems and of the International Workshop on Acoustic Echo and Noise Control. We also try to look into the future. 1. WHERE DO WE COME FROM? Acoustic echo and noise control units as used in handsfree communication systems are comprised of three subunits: A loss control circuit, an adaptive filter parallel to the loudsp...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013