27,921 Hits in 6.5 sec

Realization on the interactive remote video conference system based on multi-Agent

Yan Zheng, Wen Ting Li, Li Zeng, Yu Ge, Xiao Yan Cai, Xian Yu Meng, J.C.M. Kao, W.-P. Sung
2016 MATEC Web of Conferences  
FEC (forward error correction) and tree P2P technology are firstly used to build a live conference structure to transfer audio and video data; then the branch conference port can participate to speak and  ...  The audio and video quality is smooth. It can carry out large-scale remote video conference.  ...  The technology of forward error correction coding is dramatically decrease the influence which is caused by network packet dropout for the quality of audio and video in system.  ... 
doi:10.1051/matecconf/20166304011 fatcat:qi3ou4ow2rajpgdghgprk2zkpi

A Survey of Packet Loss Recovery Techniques for Streaming Audio [chapter]

Colin Perkins, Orion Hodson, Vicky Hardman
2002 Readings in Multimedia Computing and Networking  
We compare and contrast several sender-based recovery schemes: forward error correction (both media-specific and media-independent), interleaving, and retransmission.  ...  We survey a number of packet loss recovery techniques for streaming audio applications operating using IP multicast.  ...  In particular, we wish to thank Jon Crowcroft and Roy Bennett for their helpful comments. We are grateful to Mark Handley for permission to use Fig. 1 . The authors are supported by the U.K.  ... 
doi:10.1016/b978-155860651-7/50139-x fatcat:r6aypvngbrc3tcj5bj2mpuvu2e

A survey of packet loss recovery techniques for streaming audio

C. Perkins, O. Hodson, V. Hardman
1998 IEEE Network  
We compare and contrast several sender-based recovery schemes: forward error correction (both media-specific and media-independent), interleaving, and retransmission.  ...  We survey a number of packet loss recovery techniques for streaming audio applications operating using IP multicast.  ...  In particular, we wish to thank Jon Crowcroft and Roy Bennett for their helpful comments. We are grateful to Mark Handley for permission to use Fig. 1 . The authors are supported by the U.K.  ... 
doi:10.1109/65.730750 fatcat:utwaptigxvb3pazclz7iowyhzu

Content-independent and loss-pattern-aware distortion evaluation for streaming media

Xiaoqing Zhu, Wai-tian Tan, John Apostolopoulos, Ahmed Badr, Ashish Khisti
2016 2016 IEEE International Conference on Image Processing (ICIP)  
For various combinations of erasure channel models and forward error correction (FEC) codes, the correlation coefficients between LoPAD and PESQ-DMOS range from 0.94 to 0.98.  ...  Index Termscontent-independent evaluation, residual packet loss patterns, perceptual evaluation of speech quality (PESQ), forward error correction (FEC)  ...  SYSTEM MODEL Practical interactive multimedia applications usually employ forward-error correction (FEC) for loss recovery.  ... 
doi:10.1109/icip.2016.7532611 dblp:conf/icip/ZhuTABK16 fatcat:aneeej6onrabbhlr24f6wytwem

Optimization of reconfigurable DAB/DAB+ architecture using maximum likelihood path decoding

G. Vishnu Priya, P. Bharathi
2014 2014 Sixth International Conference on Advanced Computing (ICoAC)  
Digital audio broadcasting technology (DAB) is one of the far-reaching electronic mass media.  ...  The upgraded version of DAB is DAB+ which provides coding efficiency even in bandwidth-limited applications.  ...  Using the convolutional encoder, the ½ code difference indicates the bit inversion. rate is obtained which is one of the forward error Compression is done with the help of input correction techniques.  ... 
doi:10.1109/icoac.2014.7229754 fatcat:tpvyq53povbcrh373z6vfguoc4

Page 4 of SMPTE Motion Imaging Journal Vol. 95, Issue 1 [page]

1986 SMPTE Motion Imaging Journal  
To simplify the implementation of the re- corder, part of the error-correction processor and most of the sync and clock processing, channel coding, and read/write logic for the audio chan- nels is integrated  ...  detection in playback of word errors and a good level of error correction, invoking er- ror concealment when correction overflows.  ... 

[Paper] The Effect of MMT AL-FEC on QoE of Error-Concealed Video Streaming

Toshiro Nunome
2020 ITE Transactions on Media Technology and Applications  
(Application-Level Forward Error Correction) of MMT (MPEG Media Transport), which is an application-level protocol for video transmission.  ...  In this paper, we assess subjective QoE (Quality of Experience) and objective application-level QoS (Quality of Service) of video IP transmission with error concealment mechanisms of H.264/AVC and AL-FEC  ...  For recovering from errors and packet losses over the networks, in MMT, we can employ AL-FEC (Application-Level Forward Error Correction).  ... 
doi:10.3169/mta.8.186 fatcat:4mvhpipxofcmjfogw66mccd4ze

Performance Analysis of OFDM Based DAB Systems Using Concatenated Coding Technique

Arun Agarwal, S.K. Patra
2011 Advanced Materials Research  
Radio broadcasting technology in this era of compact disc is expected to deliver high quality audio programmes in mobile environment.  ...  The Eureka-147 Digital Audio Broadcasting (DAB) system with coded OFDM technology accomplish this demand by making receivers highly robust against effects of multipath fading environment.  ...  The inner coding is based on punctured convolutional forward-error-correction (FEC) which allows both Equal and Unequal Error Protection.  ... 
doi:10.4028/ fatcat:mhdn34kkfffifduozmqzpuzuj4

Synchronized audio redundancy coding for improved error resilience in streaming over DVB-H

Miska M. Hannuksela, Vinod Kumar Malamal Vadakital, Satu Jumisko
2007 Proceedings of the 3rd International ICST Conference on Mobile Multimedia Communications  
The residual transmission errors can degrade the audio-visual quality dramatically. This paper presents an error control method, called synchronized audio redundancy coding.  ...  It provides good forward error correction (FEC) capabilities to combat transmission errors. However, transmission errors can be occasionally so severe that FEC decoding fails.  ...  We wish to thank Kati Nevalainen for her work in the project. References  ... 
doi:10.4108/icst.mobimedia2007.1765 dblp:conf/mobimedia/HannukselaVJ07 fatcat:mmrxkk6ckrdptpju3q2m23q5pu

Method for Unequal Error Protection in DVB-H for Mobile Television

Vinod Malamal Vadakital, Miska Hannuksela, Mehdi Rezaei, Moncef Gabbouj
2006 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications  
Each group is then protected using Reed-Solomon forward error correction (FEC) codes and packed into multi-protocol encapsulation (MPE) FEC frames as defined by the DVB-H standard.  ...  This paper introduces a method for unequal error protection (UEP) of media data in a time-sliced DVB-H channel. Media datagrams are assigned priorities using some a-priori knowledge.  ...  The first of these is protection using forward error correction (FEC) codes.  ... 
doi:10.1109/pimrc.2006.254087 dblp:conf/pimrc/VadakitalHRG06 fatcat:nutyhnq4pzeqxlan73kxywodtu

When on-the-fly erasure code makes late video decoding happen

Pierre Ugo Tournoux, Tuan Tran Thai, Emmanuel Lochin, Jérôme Lacan
2015 Proceedings of the 25th ACM Workshop on Network and Operating Systems Support for Digital Audio and Video - NOSSDAV '15  
Another type of error resilience schemes frequently used falls in the family of application layer forward error correction (AL-FEC) and more particularly (n, k) block based erasure codes which generate  ...  A simple solution to tackle the problem of video packet loss is to let the receiver detect the missing packets and ask for their retransmission.  ... 
doi:10.1145/2736084.2736086 dblp:conf/nossdav/TournouxTLL15 fatcat:w45ucytgt5glffspoxhmz434nu

A forward error recovery technique for MPEG-II video transport

R. Radhakrishna Pillai, B. Prabhakaran, Qui Qiang
1999 Proceedings of the seventh ACM international conference on Multimedia (Part 2) - MULTIMEDIA '99  
Forward error correction (FEC) codes and frequent synchronizing codewords have been proposed in [5, 61.  ...  FEC can potentially add more errors to a bit stream once the correcting capability of the code has been exceeded. An error-resilient entropy coding (EREC) technique has been suggested in [2, 3, 11.  ... 
doi:10.1145/319878.319897 dblp:conf/mm/PillaiPQ99 fatcat:e4sr3joeinet7d5hor35dcgwcm

Schemes for error resilient streaming of perceptually coded audio

J. Korhonen, Ye Wang
2003 2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698)  
This paper presents novel extensions to our earlier system for streaming perceptually coded audio over error prone channels such as mobile IP.  ...  To improve error robustness while maintaining bandwidth efficiency, the new extensions combine the strength of an error resilient coding scheme in the sender, a prioritized packet transport scheme in the  ...  That is why dif-.ferent techniques for error correction, error resilience and concealment have been developed. The focus of this paper ,is on perceptually coded high quality audio.  ... 
doi:10.1109/icme.2003.1221274 dblp:conf/icmcs/KorhonenW03 fatcat:wxsmomdkfbcyrlbhb5tjeboemq

Toward bandwidth-efficient and error-robust audio streaming over lossy packet networks

Jari Korhonen, Ye Wang, David Isherwood
2005 Multimedia Systems  
This paper presents strategies for high-quality audio streaming based on fragmenting perceptually coded audio frames and shuffling the data components among multiple packets for transportation.  ...  Bandwidth efficiency and error robustness are essential issues for different multimedia streaming applications.  ...  Schemes based on redundant data transport are often called forward error correction (FEC) schemes. In their most simple form the sender just replicates data elements.  ... 
doi:10.1007/s00530-005-0169-4 fatcat:acsd534ww5fvfdvkzxt4zzrwhm

Modeling and Performance prediction of Eureka-147 OFDM based DAB system

Arun Agarwal, Sarat Kumar Patra
2012 International Journal of Electronics and Electical Engineering  
In this paper, we have analyzed the bit error rate (BER) performance of DAB system conforming to the parameters established by the ETSI (EN 300 401) using frequency interleaving and Forward Error Correction  ...  DAB employs coded OFDM technology that enables it for mobile reception and makes receivers highly robust against channel multipath fading effect.  ...  The scrambled bit stream is then subjected to forward error correction (FEC) employing punctured convolutional codes with code rates in the range 0.25-0.88.  ... 
doi:10.47893/ijeee.2012.1017 fatcat:elp4wg3idff6vholpa5kz3pcxi
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