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A codec is a device or computer program for encoding or decoding a digital data stream or signal. Codec is a portmanteau of coder-decoder.
In information technology, lossy compression or irreversible compression is the class of data encoding methods that uses inexact approximations and partial data discarding to represent the content. These techniques are used to reduce data size for storing, handling, and transmitting content. The different versions of the photo of the cat to the right show how higher degrees of approximation create coarser images as more details are removed. This is opposed to lossless data compression which does not degrade the data. The amount of data reduction possible using lossy compression is much higher than through lossless techniques.
An audio codec is a codec that encodes or decodes audio.
AES3 is a standard for the exchange of digital audio signals between professional audio devices. An AES3 signal can carry two channels of PCM audio over several transmission media including balanced lines, unbalanced lines, and optical fiber.
An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purpose of standardization, speed or compression.
Transcoding is the direct digital-to-digital conversion of one encoding to another, such as for movie data files, audio files, or character encoding. This is usually done in cases where a target device does not support the format or has limited storage capacity that mandates a reduced file size, or to convert incompatible or obsolete data to a better-supported or modern format.
Digital Living Network Alliance (DLNA) was founded by a group of PC and consumer electronics companies in June 2003 to develop and promote a set of interoperability guidelines for sharing digital media among multimedia devices under the auspice of a certification standard. DLNA certified devices include smartphones, tablets, PCs, TV sets and storage servers; in a typical use case, a user sends videos, pictures or music from their smartphone or storage server through their home WLAN to a TV set or tablet for display.
A DVD recorder is an optical disc recorder that uses optical disc recording technologies to digitally record analog or digital signals onto blank writable DVD media. Such devices are available as either installable drives for computers or as standalone components for use in television studios or home theater systems.
Generation loss is the loss of quality between subsequent copies or transcodes of data. Anything that reduces the quality of the representation when copying, and would cause further reduction in quality on making a copy of the copy, can be considered a form of generation loss. File size increases are a common result of generation loss, as the introduction of artifacts may actually increase the entropy of the data through each generation.
Dynamic imaging is the amalgamation of digital imaging, image editing, and workflow automation. It is used to automate the creation of images by zooming, panning, colorize and performing other image processing and color management operations on a copy of a digital master.
gThumb is a free and open-source image viewer and organizer with options to edit images. It is designed to have a clean and simple user interface and follows GNOME HIG, it integrates well with the GNOME desktop environment.
Binary Synchronous Communication is an IBM character-oriented, half-duplex link protocol, announced in 1967 after the introduction of System/360. It replaced the synchronous transmit-receive (STR) protocol used with second generation computers. The intent was that common link management rules could be used with three different character encodings for messages. Six-bit Transcode looked backwards to older systems; USASCII with 128 characters and EBCDIC with 256 characters looked forward. Transcode disappeared very quickly but the EBCDIC and USASCII dialects of Bisync continued in use.
HandBrake is a free and open-source transcoder for digital video files, originally developed in 2003 by Eric Petit to make ripping a film from a DVD to a data storage device easier. Since then, it has undergone many changes and revisions.
Conversion or convert may refer to:
A Digital Copy is a commercially distributed computer file containing a media product such as a film or music album. The term contrasts this computer file with the physical copy with which the Digital Copy is usually offered as part of a bundle. It allows the disc's purchaser to create a single copy of the film on a computer and view it on that computer's display or an external display connected to that computer. "Digital Copy" is also commonly referred to as "Digital HD".
FlipFactory from Telestream is a video transcoding and workflow automation application. It enables the transfer of media and metadata files between professional video systems, including catch servers, broadcast servers, edit systems, streaming and distribution servers, storage area networks and digital asset management systems.
Style Jukebox was a hi-fi high-resolution audio cloud music streaming and storage player for the Windows, iOS, Android and Windows Phone platforms. A Web Player is also available for Mac, Windows and Linux.
Video converters are computer programs that can change the storage format of digital video. They may recompress the video to another format in a process called transcoding, or may simply change the container format without changing the video format. The disadvantages to transcoding are that there is quality loss when transcoding between lossy compression formats, and that the process is highly CPU intensive.
