codecs
RSS codecsEfficient High-Frequency Bandwidth Extension of Music and Speech
White Paper The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 ('mp3'), has become very popular in the last few years. However, at very high compression rates the perceptual quality of the signal is degraded, which is mainly exhibited as... [11 Jul 2008]
Audio Codecs and Cisco Unity
White Paper This document describes how Cisco Unity versions 3.1(1) and later work with the supported audio codecs and how to configure the Cisco Unity system to use the codecs. Codecs are used to encode/decode or compress/decompress various types of data that... [03 Jul 2008]
Beginning Graphic, Video, and Audio Codecs
White Paper To successfully deliver content, programmers must master not only Multimedia Message Service (MMS), but also the codecs (encoder/decoder) that encode MMS audio and video content. Codecs are used to make audiovisual information more network friendly. [03 Jul 2008]
Video Codecs for the Personal Video Recorder (PVR)
White Paper The Personal Video Recorder (PVR) allows a user to store 32 hours of analog television programming in digital format (assuming a compression of 4 Mbps and 60-Gbyte hard-drive). The PVR extends the features and advantages of the VHS videocassette... [03 Jul 2008]
Perceptual Evaluation of Speech Quality (PESQ) - a New Method for Speech Quality Assessment of Telephone Networks and Codecs
White Paper This white paper gives a summary of the key innovations in PESQ (ITU-T recommendation P.862), its structure, scope and applications, as well as performance results. [03 Jul 2008]
Broadband Codecs
White Paper Increasingly, movies and videos intended for home entertainment will be in digital form. While digital information might come from different networks (cable, satellite, IP, terrestrial TV) and might be processed (e.g.decoded and decrypted) by set... [03 Jul 2008]
Performance Benchmarks for Intel Integrated Performance Primitives
White Paper The Intel Integrated Performance Primitives (Intel IPP) is a cross-architecture software library that provides a range of library functions for multimedia, audio codecs, video codecs (for example, H.263 and MPEG-4), image coding (for example, JPEG... [03 Jul 2008]
Perceptual Speech Quality Measure White Paper
White Paper It is an ITU-T P.861 recommended objective method of estimating the subjectiv quality of voice-band speech codecs. The recommendation is based on the work of Beerends et al.The essence of the PSQM algorithm is to measure the distortion experienced... [03 Jul 2008]
Voice over IP - Bandwidth Efficiency
White Paper Modern voice CODECs such as G.729A and G.723.1 can reduce this to 8 kbits/s or less whilst maintaining near toll quality. PCM speech has a bidirectional bandwidth of 64 kbits/s. This means that 8 to 10 compressed voice channels can be transmitted... [03 Jul 2008]
Set-Top Box Client Software
White Paper ASF), QuickTime, and proprietary Codecs (Streambox ACT-L2). The Client is the software on the set-top box (PC) that allows the user to search, browse, and access digital media. The Client integrates within a common interface several applications... [03 Jul 2008]
D.A.V.I.D. Changes the Economics of TV News Production Using Technology From MainConcept AG
White Paper To solve this D.A.V.I.D.built its suite of video applications using codecs from MainConcept, which are optimized for Intel architecture to help provide cost-effective real-time performance. D.A.V.I.D.a leading solution provider in the radio news... [03 Jul 2008]
Diagnosing Voice Quality Impairments and Designing Solutions for Voice Over IP Systems
White Paper It provides guidance for choosing CODECs, provisioning networks to support VoIP, and working with interconnect devices such as hubs, bridges, switches, and routers. Successful Voice over IP (VoIP) deployments can deliver solutions that provide... [03 Jul 2008]
IP Digital Set Top Box: Scalable Platform for Video-On Demand With TV-Out
White Paper This platform plays a key role in emerging business models, such as the delivery of IP-TV and video-on-demand (VoD) over broadband, which is made possible by emerging advanced codecs implemented in software. [03 Jul 2008]
Dolby E Multichannel Coding for DTV Audio Production and Distribution
White Paper With Dolby E, up to eight channels of high-quality audio plus Dolby Digital metadata can be distributed via an AES3 pair, or recorded onto two audio tracks of a digital VTR.Instead of having to replace their audio equipment and routing systems... [03 Jul 2008]
An Analysis of the Skype Peer-to-Peer Internet Telephony Protocol
White Paper This paper analyzes key Skype functions such as login, NAT and firewall traversal, call establishment, media transfer, codecs, and conferencing under three different network setups. Skype is a peer-to-peer VoIP client developed by KaZaa. [26 Apr 2008]
