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| 1 | |bandwidth| | |bandwidth| | |<P>The data transfer capacity of a digital communications system | such as the Internet or a LAN. Bandwidth is usually expressed in the number of bits that a system is capable of transferring in a second: bits per second (bps). High bandwidth or broadband refers to a network capable of a fast data transfer rate.| |
| 2 | |bitrate| | |bit rate| | |<P>The speed at which digital audio and video content is streamed from a source | such as a file | to be rendered properly by a player | or the speed at which binary content in general is streamed on a network. Bit rate is usually measured in kilobits per second (Kbps) | for example | 28.8 Kbps. The bit rate of a Windows Media file or live stream is determined during the encoding process | when the streaming content is created. Bandwidth is the total bit rate capacity of a network. For audio and video content to render properly when streaming over a network | the bandwidth of the network must be high enough to accommodate the bit rates of all the different content that is concurrently being streamed.| |
| 3 | |cdquality| | |CD quality| | |<P>Audio that is encoded by using uncompressed PCM at 44.1 kHz and 16 bit stereo. A CD and an audio stream encoded at CD quality sound identical. | |
| 4 | |caption| | |caption| | |<P>Text that accompanies an image or video stream.| |
| 5 | |codec| | |codec| | |<P>Abbreviation for compressor/decompressor. An algorithm or scheme used when recording digital video or audio. A codec is used | for example | when video is transmitted over the Internet; the video is compressed on the sending end and decompressed on the receiving end. Users can select a codec based on the audio or image quality | and image size preferred.| |
| 6 | |compression| | |compression| | |<P>The coding of data to reduce file size or the bit rate of a stream. Content that has been compressed must be decompressed for playback. A codec contains the algorithms for compressing and decompressing audio and video.| |
| 7 | |content| | |content| | |<P>Data that an encoder or server streams to a client or clients. Content can originate from live audio or live video presentation | stored audio or video files | still images | or slide shows. The content must be translated from its original state into a Windows Media format before a Windows Media server can stream it. Windows Media servers can stream live streams or stored Window Media files as content.| |
| 8 | |deinterlace| | |deinterlace| | |<P>To combine two interlaced fields into a single frame and render them at 30 frames per second (fps). Deinterlacing is done to remove artifacts and improve the quality of encoded video.| |
| 9 | |deltaframes| | |delta frame| | |<P>Frames that contain only the changes from the previous frame.| |
| 10 | |encode| | |encode| | |<P>To convert information into a specified digital format for convenient storage and retrieval by using computer technology | usually involving compression technology and encryption technology.| |
| 11 | |intelligentstreaming| | |intelligent streaming| | |<P>A type of streaming that detects network conditions and adjusts the properties of a video or audio stream to maximize quality. Intelligent streaming is only available for content encoded using a multiple bit rate profile.<P>See also streaming| |
| 12 | |interlace| | |interlace| | |<P>To display video by using a half-resolution image known as a field. Interlaced video uses two video fields to make a single frame of video. Each field of video contains alternating lines of an image: field one displays the odd numbered lines and field two displays the even numbered lines. Interlacing saves bandwidth when the video is transmitted over the airways or on cable.| |
| 13 | |inversetelecine| | |inverse telecine| | |<P>The process that intelligently removes the frames that were added when 24 fps film was converted to 30 fps video.| |
| 14 | |ISOMPEG4videocodecversion10| | |ISO MPEG-4 video codec version 1.0| | |<P>A type of codec based on the ISO MPEG-4 standard. It enables you to encode content produced by many consumer electronics devices | such as digital video cameras and cell phones.| |
| 15 | |Looping| | |looping| | |<P>The process in which file-based content is played repeatedly until encoding is completed. Looping ensures that you have no interruption in the stream as a result of reaching the end of a file before completing a broadcast or capture session.| |
| 16 | |losslesscompression| | |lossless compression| | |<P>Data compression techniques in which no data is lost. | |
| 17 | |lossycompression| | |lossy compression| | |<P>Refers to data compression techniques in which some amount of data is lost. Lossy compression technologies attempt to eliminate redundant or unnecessary information. | |
| 18 | |MediaStreamBroadcastDistributionMSBDprotocol| | |Media Stream Broadcast Distribution protocol| | |<P>A protocol used to reference Windows Media Encoder | which is the source of a stream. Used when streaming from the Windows Media Station service to a content-storage server or for server-to-server distribution. Do not use the MSBD protocol over a firewall.| |
| 19 | |MicrosoftMPEG4version3codec| | |Microsoft MPEG-4 version 3 codec| | |<P>A video codec included with Microsoft Windows Media Encoder version 4.0. | |
| 20 | |MicrosoftWindowsMediaAudiocodecversion70| | |Microsoft Windows Media Audio codec version 7.0 | | |<P>A codec used to encode most audio streams. It is best used for Internet narrowband streaming and high-fidelity downloadable music. | |
| 21 | |MicrosoftWindowsMediaScreencodecversion70| | |Microsoft Windows Media Screen codec version 7.0| | |<P>A codec that enables lossless streaming of computer screen images at data rates as low as 15 Kbps for on-demand training | software demos | and helpdesk applications. It is well suited for capturing screens in productivity applications | such as Microsoft Word | Excel | and Visual Studio. This screen capture codec is included with Windows Media Player 7.| |
| 22 | |MicrosoftWindowsMediaVideocodecversion70| | |Microsoft Windows Media Video codec version 7.0| | |<P>A codec that supports a wide variety of network bandwidths and enhances video quality for broadband Internet users. It supports multiple bit rate profiles and can be used to deliver TV-quality compression at 700 Kbps.| |
| 23 | |MSBD| | |MSBD| | |<P>See Media Stream Broadcast Distribution protocol| |
| 24 | |multicast| | |multicast| | |<P>A one-to-many connection in which multiple clients can receive the same stream from a server. To receive a multicast | a client must have access to a multicast-enabled network. In contrast | a unicast is a one-to-one connection in which one client receives a distinct stream from a server.| |
| 25 | |multicaststation| | |multicast station| | |<P>A defined location from which a player can receive streams. In effect | it is an IP address and a port. Windows Media server components use stations with Windows Media streams only and save station information as a Windows Media file with an .nsc extension.| |
| 26 | |multiplebitratevideo| | |multiple bit rate video| | |<P>A feature of Windows Media Technologies that supports the creating and streaming of multiple encoded video streams within one Windows Media stream. By using multiple bit rate video in Windows Media Encoder | you can create Windows Media-based content that has a variety of video streams at variable bandwidths ranging from 28.8 Kbps through 300 Kbps | as well as a separate audio stream. After receiving this multiple encoded stream | the server determines which bandwidth to stream based on the network bandwidth available. Multiple bit rate video is not supported on generic HTTP servers.| |
| 27 | |NationalTelevisionStandardsCommittee| | |National Television Standards Committee| | |<P>The standards body that is responsible for setting television and video standards in the United States. The NTSC standard for television defines a composite video signal with a refresh rate of 60 half-frames (interlaced) per second. Each frame contains 525 lines and can contain 16 million different colors. | |
| 28 | |NTSC| | |NTSC| | |<P>See National Television Standards Committee| |
| 29 | |NTFS| | |NTFS| | |<P>An advanced file system designed for use specifically within the Windows 2000 operating system. It supports file system recovery | extremely large storage media | and long file names. It also supports object-oriented applications by treating all files as objects with user-defined and system-defined attributes.| |
| 30 | |PAL| | |PAL| | |<P>See Phase Alternating Line| |
| 31 | |PRX| | |.prx| | |<P>The file name extension that indicates a custom profile you have created by using Profile Manager. See also profileprofile| |
| 32 | |PhaseAlternatingLine| | |Phase Alternating Line| | |<P>The dominant television standard in Europe. Whereas The NTSC | the U.S. standard | delivers 525 lines of resolution at 60 half-frames per second | PAL delivers 625 lines at 50 half-frames per second. See also NTSCNTSC| |
| 33 | |pixelformat| | |pixel format| | |<P>The color depth of an image | usually measured in RGB or YUV.| |
| 34 | |profile| | |profile| | |<P>A predefined group of settings that match content type and bit rate with appropriate audio and video codecs. | |
| 35 | |ProfileManager| | |Profile Manager| | |<P>A component of Windows Media Encoder that creates and edits the encoding profiles needed to identify the appropriate codec | the multimedia input streams | and the number and bit rate of the encoded output streams.| |
| 36 | |pulsecodemodulation| | |pulse code modulation| | |<P>A sampling technique for digitizing analog signals | especially audio signals. When you encode audio by using PCM | no compression is applied.| |
| 37 | |RGB| | |RGB| | |<P>A color model that describes color information in terms of the red (R) | green (G) | and blue (B) intensities that make up the color.| |
| 38 | |script| | |script| | |<P>A caption | URL | or custom script command that is inserted into a stream during an encoding session. The caption is displayed on Windows Media Player during playback of the encoded content. The URL causes the browser to open to the specified Web page. The custom script command sends notification of an event | such as launching a Web page with an embedded player. See also captioncaption| |
| 39 | |SiproLabsACELPcodec| | |Sipro Labs ACELP codec | | |<P>A type of codec that provides excellent voice compression at low bit rates. This codec comes with several audio formats depending on the network bandwidth you choose. | |
| 40 | |source| | |source| | |<P>The type of content that Windows Media Encoder can encode: audio | video | or script. Audio and video content is captured from a card installed on your computer or from a file that was converted to Windows Media Format. Scripts are typed directly from the encoder user interface during an encoding session.| |
| 41 | |sourcegroup| | |source group| | |<P>Audio | video | and scripts that are encoded into a stream and played in Windows Media Player. | |
| 42 | |stream| | |stream| | |<P>Data transmitted across a network and any properties associated with the data. Streaming data enables the player to begin rendering the data immediately instead of waiting for the entire file to be downloaded.| |
| 43 | |streamformatfile| | |stream format file| | |<P>A file used by Windows Media Player to decode a multicast Windows Media format stream. A stream format file includes information about the stream | the media that the stream contains | and its codec. | |
| 44 | |targetbandwidths| | |target bandwidths| | |<P>The number of bits that are transferred to users based on the speed of their network connections.| |
| 45 | |telecine| | |telecine| | |<P>The film-to-video conversion system that adds frames to video to compensate for the differences in frame rates between film and video. When converting 24 fps film to 30 fps NTSC video | an additional 6 frames per second are added.| |
| 46 | |timetoliveTTL| | |time-to-live | | |<P>In multicasting | a value that defines the number of routers through which a multicast can pass before a router stops forwarding the multicast. | |
| 47 | |TTL| | |TTL| | |<P>See time-to-live| |
| 48 | |UDP| | |UDP| | |<P>See User Datagram Protocol| |
| 49 | |unicast| | |unicast | | |<P>A one-to-one client/server connection during which the client receives a distinct stream from the server. No other client has access to the stream. Each client has its own connection to the server and a separate content stream must be generated for each client requesting content from the server.| |
| 50 | |UserDatagramProtocolUDP| | |User Datagram Protocol | | |<P>A communication protocol that sends a data unit or datagram from one computer to another. It does not sequence the packets that the data arrives in | but it does provide a checksum capability to verify that the data arrived intact.| |
| 51 | |WME| | |.wme| | |<P>The file name extension that identifies the Windows Media Encoder configuration file created when you set up an encoding session.| |
| 52 | |WindowsMediafile| | |Windows Media file| | |<P>A file created by Windows Media Technologies | which contains audio | video | or script data that is stored in Windows Media Format. It is highly optimized for streaming. This file can be streamed by Windows Media server and played by Windows Media Player.| |
| 53 | |WindowsMediaFormatDefinition| | |Windows Media Format| | |<P>The format used by Microsoft Windows Media Technologies (or a third party product that incorporates a licensed Windows Media technology) to author | store | edit | distribute | stream | or play timeline-based content.| |
| 54 | |YUV| | |YUV| | |<P>A color model that describes color information in terms of luminance (Y) and chrominance (U | V).|
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