Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Peter Pocta"'
Publikováno v:
Advances in Multimedia, Vol 2007 (2007)
This paper describes measurements of the impact of background traffic on speech quality in an environment of WLANs (IEEE 802.11). The simulated background traffic consists of three types of current traffics in telecommunication networks such as data
Externí odkaz:
https://doaj.org/article/f2fec252e0bc49e08947d8af645886e7
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 20, Iss 3, Pp 324-335 (2022)
From the beginnings of ITU-T H.261 to H.265 (HEVC), each new video coding standard has aimed at halving the bitrate at the same perceptual quality by redundancy and irrelevancy reduction. Each improvement has been explained by comparably small change
Externí odkaz:
https://doaj.org/article/90ddc904ef1e463cbf81118c32230413
Autor:
Martin Jakubik, Peter Pocta
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 19, Iss 4, Pp 304-312 (2021)
Due to the rising usage of various broadcasting systems and web-casting applications, a measurement of audio quality has become an essential task. This paper presents a benchmark of the parametric models for non-intrusive estimation of the audio qual
Externí odkaz:
https://doaj.org/article/f19c14f41df7493ca6ad9c98950af56c
Autor:
Martin Jakubik, Peter Pocta
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 18, Iss 4, Pp 235-241 (2020)
Objective quality assessment models have been used more and more in recent years to assess or monitor speech and audio quality in many multimedia and audio processing systems. These methods offer a clear and repeatable way to evaluate a customer expe
Externí odkaz:
https://doaj.org/article/28eae307d3694f19b7de3bdd3b965b64
Publikováno v:
Applied Sciences, Vol 12, Iss 19, p 9677 (2022)
Vehicle-to-Infrastructure (V2I) communication is expected to bring tremendous benefits in terms of increased road safety, improved traffic efficiency and decreased environmental impact. In 2017, The 3rd Generation Partnership Project (3GPP) released
Externí odkaz:
https://doaj.org/article/c2ea5f7f8b1d4afd897fd36bd9522cea
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 17, Iss 4, Pp 436-445 (2019)
The coding tools used in image and video encoders aim at high perceptual quality for low bitrates. Analyzing the results of the encoders in terms of quantization parameter, image partitioning, prediction modes or residuals may provide important insig
Externí odkaz:
https://doaj.org/article/2fc27cf54d5c4d13974697e11a950bd1
Publikováno v:
Sensors, Vol 21, Iss 15, p 5095 (2021)
For more than a decade, communication systems based on the IEEE 802.11p technology—often referred to as Dedicated Short-Range Communications (DSRC)—have been considered a de facto industry standard for Vehicle-to-Infrastructure (V2I) communicatio
Externí odkaz:
https://doaj.org/article/bcc4f1e21de444a88ce49ece101235a8
Publikováno v:
Communications, Vol 18, Iss 1, Pp 11-16 (2016)
Due to the recent shift toward cloud based computing, some of the world's leading standardization bodies have combined forces to provide guidelines and standards for native implementation of RealTime Communication (RTC) in the browsers. The World Wid
Externí odkaz:
https://doaj.org/article/205a00f519a94cfd83cac15c9574bd49
Publikováno v:
Communications, Vol 18, Iss 1, Pp 17-22 (2016)
WebRTC is an open-source platform for real-time communications over the web and has been experiencing widespread adoption in recent years. WebRTC clients employ the technique of time scaling of packets to cope with the impact of network jitter and/or
Externí odkaz:
https://doaj.org/article/7b4a82359a2046d481ff2e67e2a0f3ee
Publikováno v:
Communications, Vol 18, Iss 1, Pp 23-28 (2016)
The automatic identification of person's identity from their voice is a part of modern telecommunication services. In order to execute the identification task, speech signal has to be transmitted to a remote server. So a performance of the recognitio
Externí odkaz:
https://doaj.org/article/f9d9158df7884cb88c4b82f3b787dd75