A content format is an encoded format for converting a specific type of data to displayable information. Content formats are used in recording and transmission to prepare data for observation or interpretation. This includes both analog and digitized content. Content formats may be recorded and read by either natural or manufactured tools and mechanisms.
In addition to converting data to information, a content format may include the encryption and/or scrambling of that information. Multiple content formats may be contained within a single section of a storage medium (e.g. track, disk sector, computer file, document, page, column) or transmitted via a single channel (e.g. wire, carrier wave) of a transmission medium. With multimedia, multiple tracks containing multiple content formats are presented simultaneously. Content formats may either be recorded in secondary signal processing methods such as a software container format (e.g. digital audio, digital video) or recorded in the primary format (e.g. spectrogram, pictogram).
Observable data is often known as raw data, or raw content. A primary raw content format may be directly observable (e.g. image, sound, motion, smell, sensation) or physical data which only requires hardware to display it, such as a phonographic needle and diaphragm or a projector lamp and magnifying glass.
There has been a countless number of content formats throughout history. The following are examples of some common content formats and content format categories (covering: sensory experience, model, and language used for encoding information):
- Representation (arts)
- Content carrier signals
- Content multiplexing format
- Content transmission
- Wireless content transmission
- Data storage device
- Recording format
- Data compression
- Analog television: NTSC, PAL and SECAM
- Information mapping
- Bob Boiko, Content Management Bible, Nov 2004 pp:79, 240, 830
- Ann Rockley, Managing Enterprise Content: A Unified Content Strategy, Oct 2002 pp:269, 320, 516
- Jessica Keyes, Technology Trendlines, Jul 1995 pp:201
- Oge Marques and Borko Furht, Content-Based Image and Video Retrieval, April 2002 pp:15
- David Austerberry, The Technology of Video and Audio Streaming, Second Edition, Sep 2004 pp: 328
- M. Ghanbari, Standard Codecs: Image Compression to Advanced Video Coding, Jun 2003 pp:364