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High Definition
High definition or HD most commonly refers to an increase in display or visual resolution over a previously used standard. High definition or HD may also refer to:

High Definition (Vitalij Kurprij Album)
High Definition is the first studio album by keyboardist Vitalij Kuprij, released on 26 August 1997 through Shrapnel Records.

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Lupe Fiasco's The Cool
Lupe Fiasco's The Cool (commonly referred as The Cool) is the second studio album by Chicago-native rapper Lupe Fiasco. It was released on December 18, 2007, by 1st & 15th Entertainment and Atlantic Records. Recording sessions took place during 2006 to 2007, with Lupe Fiasco himself, alongside Charles Patton (Chilly) serving as the records executive producers. The concept album, The Cool was based upon the song and a title character from his debut album, Food & Liquor (2006). The album features guest appearances from Gemini, Snoop Dogg and Matthew Santos, while the production was provided by Patrick Stump, Soundtrakk and Unkle, among others. The album debuted at number 15 on the US Billboard 200, selling 143,407 copies in its first week. The album debuted as the number-one rap record and remained for 9 weeks
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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 lines, resulting in higher quality speech. The range of the human voice extends from 80 Hz to 14 kHz but traditional, voiceband or narrowband telephone calls limit audio frequencies to the range of 300 Hz to 3.4 kHz
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Intel High Definition Audio
Intel High Definition Audio (also called HD Audio or development codename Azalia) is a specification for the audio sub-system of personal computers
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High Fidelity
High fidelity (often shortened to hi-fi or hifi) is a term used by listeners, audiophiles and home audio enthusiasts to refer to high-quality reproduction of sound. This is in contrast to the lower quality sound produced by inexpensive audio equipment, or the inferior quality of sound reproduction that can be heard in recordings made until the late 1940s. Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored)
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JPEG XR
JPEG XR (JPEG extended range) is a still-image compression standard and file format for continuous tone photographic images, based on technology originally developed and patented by Microsoft under the name HD Photo (formerly Windows Media Photo). It supports both lossy and lossle
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High Definition Compatible Digital
High Definition Compatible Digital, or HDCD is a Microsoft proprietary audio encode-decode process that claims to provide increased dynamic range over that of standard Redbook audio CDs, while retaining backward compatibility with existing Compact disc players. Originally developed by Pacific Microsonics, the first HDCD-enabled CD was re
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DTS-HD Master Audio
DTS-HD Master Audio (DTS-HD MA) is a combined lossless/lossy audio codec created by DTS (formerly Digital Theater Systems), commonly used for surround-sound movie soundtracks on Blu-ray Disc.

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Dolby TrueHD
Dolby TrueHD is a lossless multi-channel audio codec developed by Dolby Laboratories which is used in home-entertainment equipment such as Blu-ray Disc players and A/V receivers. It is one of the successors to the Dolby Digital (AC-3) surround sound codec, which is used as the audio standard for the DVD-Video format. In this application, Dolby TrueHD competes with DTS-HD Master Audio, a lossless codec from DTS. Dolby TrueHD uses Meridian Lossless Packing (MLP) as its mathematical basis for compressing audio samples. MLP is also used in the DVD-Audio format, but details of Dolby TrueHD and the MLP Lossless format as used on DVD-Audio differ substantially. A Dolby TrueHD bitstream can carry up to 16 discrete audio channels. Sample depths up to 24 bits/sample and audio sample rates up to 192 kHz are supported. Like the more common legacy codec Dolby Digital, Dolby TrueHD bitstreams carry program metadata
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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 that were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International Telecommunication Union (ITU). The Consumer Electronics Association announced on October 17, 2012, that "Ultra High Definition", or "Ultra HD", would be used for displays that have an aspect ratio of 16:9 or wider and at least one digital input capable of carrying and presenting native video at a minimum resolution of 3840×2160 pixels. In 2015, the Ultra HD Forum was created to bring together the end-to-end video production ecosystem to ensure interoperability and produce industry guidelines so that adoption of Ultra-high-definition television could accelerate
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High-Definition Multimedia Interface
HDMI (High-Definition Multimedia Interface) 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, to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for analog video standards. HDMI implements the EIA/CEA-861 standards, which define video formats and waveforms, transport of compressed, uncompressed, and LPCM audio, auxiliary data, and implementations of the VESA EDID. CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the digital visual interface (DVI)
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