End-to-end Speech Quality Analysis for Voip

نویسندگان

  • L. Sun
  • G. Wade
  • B. Lines
  • E. Ifeachor
  • D. Le. Foll
چکیده

The paper first presents the factors affecting end-to-end speech quality in VoIP, such as end-to-end frame loss/concealment and end-to-end jitter. It then discusses how these factors affect the current objective speech quality measurement algorithms and suggests essential modifications for VoIP. It also highlights extensions to the basic objective measurement, such as time-varying speech measures, and the use of non-intrusive techniques.

برای دانلود رایگان 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

Speech Quality Measurement Methods with Applying PLC Algorithms on Real-time Transmission Control Scheme for VoIP Service

According to the discovery of available and suitable audiovisual services over IP, researches on the Quality of Service (QoS) for various multimedia application services are required. This paper presents evaluation of speech quality applying improved Packet Loss Concealment (PLC) algorithms with an end-to-end bidirectional transmission control scheme. We propose real-time transmission control s...

متن کامل

VoIP in 3G Networks: An End-to-End Quality of Service Analysis

This paper presents the results of a Quality of Service (QoS) study for VoIP service over 3G WCDMA networks. An end-to-end simulation platform has been used for this purpose. The simulations have been run using Adaptive Multi-Rate (AMR) speech codec at 12.2 kbit/s with combination of RTP, UDP and IPv6 protocols. The simulated transmission path includes two radio links (uplink and downlink), con...

متن کامل

An Adaptive Codec Switching Scheme for SIP-Based VoIP

Contemporary Voice-Over-IP (VoIP) systems typically negotiate only one codec for the entire VoIP session life time. However, as different codecs perform differently well under certain network conditions like delay, jitter or packet loss, this can lead to a reduction of quality if those conditions change during the call. This paper makes two core contributions: First, we compare the speech quali...

متن کامل

Analysis of VOIP Traffic over WiMAX Networks

VoIP applications are being broadly employed in present networks challenging their abilities to offer a experience level of good quality to the users. Specially, new wireless broadband techniques i.e. WiMAX, deployed and their performance requires to assess for checking the performance levels of VoIP services. The Quality of Service is the primary challenge of implementation VOIP over WiMAX net...

متن کامل

Assessment of Speech Quality in VoIP

In VoIP (Voice over Internet Protocol), the voice is transmitted over the IP networks in the form of packets. This way of voice transmission is highly cost effective since the communication circuit need not to be permanently dedicated for one connection; however, the communication band is shared by several connections. On the other hand, the utilization of IP networks causes some drawbacks that...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000