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A Multimedia database (MMDB) is a collection of related for multimedia data. [1] The multimedia data include one or more primary media data types such as text , images , graphic objects (including drawings , sketches and illustrations ) animation sequences, audio and video .
Multimedia used to be saved on CD-ROMs, which could store roughly 700 MB of data, and floppy disks, which could only store 1.44 MB. Multimedia files are now easier to keep and retrieve because of the widespread usage of USB devices, cloud storage, and solid-state drives (SSDs), which provide significantly greater speed and space. [10]
Wikipedia offers free copies of all available content to interested users. These databases can be used for mirroring, personal use, informal backups, offline use or database queries (such as for Wikipedia:Maintenance).
Multimedia search enables information search using queries in multiple data types including text and other multimedia formats. Multimedia search can be implemented through multimodal search interfaces, i.e., interfaces that allow to submit search queries not only as textual requests, but also through other media.
Multimedia information retrieval (MMIR or MIR) is a research discipline of computer science that aims at extracting semantic information from multimedia data sources. [1] [failed verification] Data sources include directly perceivable media such as audio, image and video, indirectly perceivable sources such as text, semantic descriptions, [2] biosignals as well as not perceivable sources such ...
DirectShow filters exist to decode Vorbis in multimedia players like Windows Media Player and others which support DirectShow. Useful software for audio: For audio editing, Audacity is a high quality free audio recorder/editor for Windows, Macintosh, and Linux/Unix.
The ISO base media file format (ISOBMFF) is a container file format that defines a general structure for files that contain time-based multimedia data such as video and audio. [ 3 ] [ 4 ] It is standardized in ISO / IEC 14496-12, a.k.a. MPEG-4 Part 12, and was formerly also published as ISO/IEC 15444-12, a.k.a. JPEG 2000 Part 12.
Wikipedia uses a variety of multimedia files to enhance content and explain concepts that are difficult to convey via text alone. The multimedia files may be images (photographs or diagrams), audio or video. Many files are stored on the sister project Wikimedia Commons, though files being used under fair use provisions must be stored on Wikipedia.