منابع مشابه
Improved Echo cancellation in VOIP
VoIP (voice over internet protocol) is very popular communication technology of this century and has played tremendous role in communication system. It is preferred by all because it deploys many benefits it uses Internet protocol (IP) networks to deliver multimedia information such as speech over a data network. VoIP system can be configured in these connection modes respectively; PC to PC, Te...
متن کاملFrequency-Domain Adaptive Algorithm for Network Echo Cancellation in VoIP
We propose a new low complexity, low delay, and fast converging frequency-domain adaptive algorithm for network echo cancellation in VoIP exploiting MMax and sparse partial (SP) tap-selection criteria in the frequency domain. We incorporate these tap-selection techniques into the multidelay filtering (MDF) algorithm in order to mitigate the delay inherent in frequency-domain algorithms. We illu...
متن کاملStereophonic acoustic echo cancellation
This paper presents a new approach for Stereophonic acoustic echo cancellation (SAEC), based on a combination of J-H network and the natural gradient algorithm. In the new approach for SAEC, Computer simulations show that echoes are significantly reduced. Disciplines Physical Sciences and Mathematics Publication Details Ge, F., Premaratne, P. & Xi, J. (2005). Stereophonic acoustic echo cancella...
متن کاملForensics Analysis of Android Mobile VoIP Apps
Voice over Internet Protocol (VoIP) applications (apps) provide convenient and low cost means for users to communicate and share information with each other in real-time. Day by day, the popularity of such apps is increasing, and people produce and share a huge amount of data, including their personal and sensitive information. This might lead to several privacy issues, such as revealing user c...
متن کاملTap.leakage Applied to Echo Cancellation
This study presents a tap-leakage adjustment algorithm to control the tap drifting problem in an adaptive echo canceller. A nonrecursive transversal filter structure and stochastic gradient adaptation algorithm are first studied. On the basis of these studies, the effect of tap drift when the input spectrum does not cover the full band is presented. The tap-leakage algorithm, which has been use...
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ژورنال
عنوان ژورنال: AASRI Procedia
سال: 2014
ISSN: 2212-6716
DOI: 10.1016/j.aasri.2014.08.015