NationMaster - Encyclopedia: Au file format

The Au file format is a simple audio file format that consists of a header of 6 32-bit words and then the data (high-order byte comes first). The format was introduced by Sun Microsystems. To meet Wikipedias quality standards, this article or section may require cleanup. ... BIT is an acronym for: Bangalore Institute of Technology Bilateral Investment Treaty Bhilai Institute of Technology - Durg Birla Institute of Technology - Mesra Battles in Time (Doctor Who magazine) Category: ... Sun Microsystems, Inc. ...

The type of encoding depends on the value of the 'encoding' field (word 3 of the header). Formats 2–7 are uncompressed PCM, therefore lossless. Formats 23–36 are ADPCM, which is a lossy, roughly 4:1 compression. Formats 1 and 27 are μ-law and A-law, respectively, both lossy. Several of the others are DSP commands or data, designed to be processed by the NeXT MusicKit software. In mathematics and computer science, base-16, hexadecimal, or simply hex, is a numeral system with a radix or base of 16 usually written using the symbols 0â€“9 and Aâ€“F or aâ€“f. ... Wikibooks has a book on the topic of C Programming The C programming language (often, just C) is a general-purpose, procedural, imperative computer programming language developed in the early 1970s by Dennis Ritchie for use on the Unix operating system. ... In computer programming, a magic number is a special constant used for some specific purpose. ... A byte is commonly used as a unit of storage measurement in computers, regardless of the type of data being stored. ... In telecommunication, a mu-law algorithm (Î¼-law) is a standard analog signal compression or companding algorithm, used in digital communications systems of the North American and Japanese digital hierarchies, to optimize (in other words, modify) the dynamic range of an audio analog signal prior to digitizing. ... Pulse-code modulation (PCM) is a modulation technique. ... Pulse-code modulation (PCM) is a modulation technique. ... Pulse-code modulation (PCM) is a modulation technique. ... Pulse-code modulation (PCM) is a modulation technique. ... The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ... The IEEE Standard for Binary Floating-Point Arithmetic (IEEE 754) is the most widely-used standard for floating-point computation, and is followed by many CPU and FPU implementations. ... // Introduction In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits before and after the radix point (e. ... // Introduction In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits before and after the radix point (e. ... // Introduction In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits before and after the radix point (e. ... // Introduction In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits before and after the radix point (e. ... In telecommunication, a mu-law algorithm (Î¼-law) is a standard analog signal compression or companding algorithm, used in digital communications systems of the North American and Japanese digital hierarchies, to optimize (in other words, modify) the dynamic range of an audio analog signal prior to digitizing. ... G.726 is ITU-T speech codec operating at bit rates of 16-40 kbit/s. ... Pulse-code modulation (PCM) is a modulation technique. ... G.722 is a ITU-T standard wideband speech codec operating at 32-64 kbit/s. ... Pulse-code modulation (PCM) is a modulation technique. ... This article is in need of attention from an expert on the subject. ... Pulse-code modulation (PCM) is a modulation technique. ... This article is in need of attention from an expert on the subject. ... Pulse-code modulation (PCM) is a modulation technique. ... An a-law algorithm is a standard companding algorithm, used in European digital communications systems to optimize, modify, the dynamic range of an analog signal for digitizing. ... PCM is an initialism which can have different meanings: Phase Change Material Pulse-code modulation, a way to digitally encode signals representing sound and their video counterparts Potential Cancer Marker Communist Party of Mexico Plug Compatible Manufacturer Power-train control module, a computer in a car which controls the car... Lossless data compression is a class of data compression algorithms that allow the original data to be reconstructed exactly from the compressed data. ... In telecommunication, a mu-law algorithm (μ-law) is a standard analog signal compression or companding algorithm, used in digital communications systems of the North American and Japanese digital hierarchies, to optimize, , modify, the dynamic range of an audio analog signal prior to digitizing. ... An a-law algorithm is a standard companding algorithm, used in European digital communications systems to optimize, modify, the dynamic range of an analog signal for digitizing. ... Digital signal processing (DSP) is the study of signals in a digital representation and the processing methods of these signals. ... NeXT was a computer company headquartered in Redwood City, California, that developed and manufactured two computer workstations during its existence, the NeXTcube and NeXTstation. ...

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Categories: Computer file formats | Container formats Multimedia is the use of several media (e. ... Bold text Wiktionary has related dictionary definitions, such as: compressor, compression inthe wkjhrlfidhb;g/df == Compressor may refer to: Gas compressor, a mechanical device that compresses a gas e. ... Format has several meanings; did you mean: Disk formatting — the process of preparing a disk for use File format — various ways information is encoded in computing Format — a command in the Common Lisp programming language Radio format — the musical style and programming philosophy of a radio station. ... Video compression refers to making a digital video signal use less data, without noticeably reducing the quality of the picture. ... ISO has many meanings: Iso is the stem of the Latin transliteration of the Greek word Î¯ÏƒÎ¿Ï‚ (Ãsos, meaning equal). The iso- prefix in English derives from this and means equality or similarity. ... The International Electrotechnical Commission (IEC) is an international standards organization dealing with electrical, electronic and related technologies. ... MPEG-1 defines a group of Audio and Video (AV) coding and compression standards agreed upon by MPEG (Moving Picture Experts Group). ... MPEG-2 is the designation for a group of coding and compression standards for Audio and Video (AV), agreed upon by MPEG (Moving Picture Experts Group), and published as the ISO/IEC 13818 international standard. ... MPEG-4 is a standard used primarily to compress audio and video (AV) digital data. ... H.264 is a high compression digital video codec standard written by the ITU-T Video Coding Experts Group (VCEG) together with the ISO/IEC Moving Picture Experts Group (MPEG) as the product of a collective partnership effort known as the Joint Video Team (JVT). ... The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU) and is based in Geneva, Switzerland. ... H.261 is an 1990 ITU video coding standard originally designed for transmission over ISDN lines on which data rates are multiples of 64 kbit/s. ... H.262 is an ITU-T digital video coding standard. ... H.263 is a video codec designed by the ITU-T as a low-bitrate encoding solution for videoconferencing. ... H.264 is a high compression digital video codec standard written by the ITU-T Video Coding Experts Group (VCEG) together with the ISO/IEC Moving Picture Experts Group (MPEG) as the product of a collective partnership effort known as the Joint Video Team (JVT). ... The Society of Motion Picture and Television Engineers or SMPTE (pronounced simptee or sometimes sumptee) is a US professional association of engineers. ... VC-1 is the informal name of the SMPTE 421M video codec standard. ... TrueMotion VP7 is a video codec developed by On2 Technologies as a successor to earlier efforts such as VP3, VP5 and TrueMotion VP6. ... RealVideo is a proprietary video codec developed by RealNetworks. ... Windows Media Video (WMV) is a generic name for the set of proprietary streaming video technologies developed by Microsoft. ... Indeo is a video codec originally developed by Intel and now owned by Ligos. ... Motion JPEG (M-JPEG) is a video codec Where each video field is separately compressed into a JPEG image. ... Theora is a video codec being developed by the Xiph. ... Dirac is a prototype algorithm for the encoding and decoding (see codec) of raw video. ... Audio compression is a form of data compression designed to reduce the size of audio data files. ... ISO has many meanings: Iso is the stem of the Latin transliteration of the Greek word Î¯ÏƒÎ¿Ï‚ (Ãsos, meaning equal). The iso- prefix in English derives from this and means equality or similarity. ... The International Electrotechnical Commission (IEC) is an international standards organization dealing with electrical, electronic and related technologies. ... The Moving Picture Experts Group or MPEG is a working group of ISO/IEC charged with the development of video and audio encoding standards. ... This article or section does not cite its references or sources. ... MPEG-1 Audio Layer II (MP2, sometimes Musicam) is an audio codec. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... MPEG-4 Part 3 (formally ISO/IEC 14496-3) is, as the name suggests, the third part of the ISO/IEC MPEG-4 international standard. ... The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU) and is based in Geneva, Switzerland. ... G.711 is an ITU-T standard for audio companding. ... G.722 is a ITU-T standard wideband speech codec operating at 32-64 kbit/s. ... G.722. ... Adaptive Multi Rate - WideBand or AMR-WB is a speech coding standard developed after the AMR using same technology like ACELP. The codec provides excellent speech quality due to wider speech bandwidth of 50 - 7000 Hz compared to narrowband speech codecs which in general are optimized for POTS wireline quality... This article is in need of attention from an expert on the subject. ... G.723. ... G.726 is ITU-T speech codec operating at bit rates of 16-40 kbit/s. ... G.729 From Wikipedia, the free encyclopedia You have new messages (changes). ... G.729 is an audio data compression algorithm for voice that compresses voice audio in chunks of 10 milliseconds. ... The Free Lossless Audio Codec (FLAC) logo. ... The Internet Low Bit Rate Codec (iLBC) is a royalty free narrowband speech codec, developed by Global IP Sound (GIPS). ... RealAudio is a proprietary audio format developed by RealNetworks. ... Windows Media Audio (WMA) is a proprietary compressed audio file format developed by Microsoft. ... Speex is a free software speech codec that claims to be unencumbered by patent restrictions. ... Vorbis is an open and free lossy audio compression codec project headed by the Xiph. ... ATRAC (Adaptive TRansform Acoustic Coding) is an audio compression algorithm used to store information on Minidiscs and other Sony_branded audio players. ... Description Dolby Digital is the trademark for Dolby Laboratories AC-3 audio coding system. ... Audio Interchange File Format is a file format standard used for storing audio data on PCs. ... Image compression is the application of data compression on digital images. ... ISO has many meanings: Iso is the stem of the Latin transliteration of the Greek word Î¯ÏƒÎ¿Ï‚ (Ãsos, meaning equal). The iso- prefix in English derives from this and means equality or similarity. ... The International Electrotechnical Commission (IEC) is an international standards organization dealing with electrical, electronic and related technologies. ... The ITU Telecommunication Standardization Sector (ITU-T) coordinates standards for telecommunications on behalf of the International Telecommunication Union (ITU) and is based in Geneva, Switzerland. ... In computing, JPEG (pronounced JAY-peg) is a commonly used standard method of lossy compression for photographic images. ... JPEG 2000 is a wavelet-based image compression standard. ... faldfjajsldfkja;sdfkja;dkjfasdf;j ... JBIG is a lossless image compression standard from the Joint Bi-level Image Experts Group, standardized as ISO/IEC standard 11544 and as ITU-T recommendation T.82. ... JBIG2 is an image compression standard for bi-level images, developed by the Joint Bi-level Image Experts Group. ... An example of a GIF image. ... A PNG image with an 8-bit transparency channel (top). ... This article is about TIFF, the computer image format. ... PCX is an image file format that uses a simple form of run-length encoding (a type of lossless compression algorithm). ... Truevision TGA is a raster graphics file format. ... // Bitmap File Overview . ... Windows Media Photo (WMPhoto), a part of the Windows Media family, is a high compression still image format for continuous tone photographic images, developed by Andrew Gordon of Microsoft. ... ILBM is a subtype of the Interchange File Format used for storing picture data. ... A container format is a computer file format that can contain various types of data, compressed by means of standardized codecs. ... AVI, an acronym for Audio Video Interleave, is a multimedia container format introduced by Microsoft in November 1992, as part of the Video for Windows technology. ... Advanced Systems Format (formerly Advanced Streaming Format) is Microsofts proprietary digital audio/digital video container format, especially meant for streaming media. ... WAV (or WAVE), short for Waveform audio format, is a Microsoft and IBM audio file format standard for storing audio on PCs. ... MPEG-4 Part 14, formally, ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. ... OGG can refer to several items: Ogg is a multimedia bitstream container, used for audio and video files, especially Vorbis audio files. ... Ogg Media (OGM), meaning Ogg Media File, is a container format (for video, audio and subtitle streams). ... Matroska (common file extensions being . ... QuickTime is a multimedia technology developed by Apple Computer, capable of handling various formats of digital video, sound, text, animation, music, and immersive panoramic (and sphere panoramic) images. ... RealMedia is a multimedia container format created by RealNetworks. ... 3GP is a multimedia container format defined by 3GPP for use on 3G mobile phones. ...

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