High definition or HD may refer to:

Visual technologies

HD DVD HD DVD (short for High Definition Digital Versatile Disc) is an obsolete high-density optical disc format for storing data and playback of high-definition video. Supported principally by Toshiba, HD DVD was envisioned to be the successor to the ...

, discontinued optical disc format *HD Photo, former name for the

JPEG XR JPEG XR (JPEG extended range) is an image compression standard for continuous tone photographic images, based on the HD Photo (formerly Windows Media Photo) specifications that Microsoft originally developed and patented. It supports both lossy a ...

image file format *

HDV HDV is a format for recording of high-definition video on DV cassette tape. The format was originally developed by JVC and supported by Sony, Canon, and Sharp. The four companies formed the HDV Consortium in September 2003. Conceived as an af ...

, format for recording high-definition video onto magnetic tape * HiDef, 24 frames-per-second digital video format *

High-Definition Multimedia Interface High-Definition Multimedia Interface (HDMI) is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device, such as a display controller ...

(HDMI), all-digital audio/video interface capable of transmitting uncompressed streams *

High-definition television High-definition television (HD or HDTV) describes a television system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since 1936; in more recent times, it refers to the g ...

(HDTV), television signals and apparatus with higher resolution than their contemporary counterparts **

Ultra-high-definition television Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. These were first proposed b ...

, a further step in television resolution * High-definition video, used in HDTV broadcasting, digital film, computer HD video file formats, and video games

Audio technologies

Dolby TrueHD Dolby TrueHD is a lossless, multi-channel audio codec developed by Dolby Laboratories for home video, used principally in Blu-ray Disc and compatible hardware. Dolby TrueHD, along with Dolby Digital Plus (E-AC-3) and Dolby AC-4, is one of the i ...

, lossless audio compression codec *

DTS-HD Master Audio DTS-HD Master Audio (DTS-HD MA; known as DTS++ before 2004) is a multi-channel, lossless audio codec developed by DTS as an extension of the lossy DTS Coherent Acoustics codec (DTS CA; usually itself referred to as just DTS). Rather than being ...

, lossless audio compression codec *

High Definition Compatible Digital High Definition Compatible Digital (HDCD) is a proprietary audio encode-decode process that claims to provide increased dynamic range over that of standard Compact Disc Digital Audio, while retaining backward compatibility with existing compact d ...

, discontinued digital audio optical disc format * High-definition audio, general marketing term for high fidelity audio products and services *

Intel High Definition Audio Intel High Definition Audio (IHDA) (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers. It was released by Intel in 2004 as the successor to their AC'97 PC audio standard. Featur ...

, 2004 Intel specification for hardware and associated drivers for Personal computer audio *

Wideband audio Wideband audio, also known as wideband voice or HD voice, is high definition voice quality for telephony audio, contrasted with standard digital telephony "toll quality". It extends the frequency range of audio signals transmitted over telephone ...

, also known as HD voice, is high definition voice quality for telephony audio

Music

*"Hi-Definition", 2008 single from ''

Lupe Fiasco's The Cool ''Lupe Fiasco's The Cool'' (commonly referred as ''The Cool'') is the second studio album by American rapper Lupe Fiasco. It was released on December 18, 2007, by 1st & 15th Entertainment and Atlantic Records. Recording sessions took place during ...

'' * ''High Definition'' (Joe Morris album), 2008 * ''High Definition'' (Shootyz Groove album), 1999 *"High Definition", a single from Waterparks' 2019 album, ''

Fandom A fandom is a subculture composed of fans characterized by a feeling of empathy and camaraderie with others who share a common interest. Fans typically are interested in even minor details of the objects of their fandom and spend a significant ...

Other

* High Definition (radio program), 2006 Canadian radio program *

High-definition map A high-definition map (HD map) is a highly accurate map used in autonomous driving, containing details not normally present on traditional maps. Such maps can be precise at a centimetre level. HD maps are often captured using an array of sensors, ...

, used in autonomous driving {{disambiguation