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Definition of Headroom

Babylon English

space above the head (in a doorway, car, etc.)
Headroom Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
See Headway, 2.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

headroom
\head"room`\ (?), n. (arch.) see headway, 2.

WordNet 2.0

Noun
1. vertical space available to allow easy passage under something
(synonym) headway, clearance
(hypernym) room, way, elbow room
2. the capacity of a system to reproduce loud sounds without distortion
(synonym) dynamic headroom
(hypernym) high fidelity, hi-fi
Headroom Definition from Computer & Internet Dictionaries & Glossaries
Digital Video (DV) & video edit terms / Eng2Eng v1.0 (web compilation)
Space between the top of the subject and a monitor's upper screen edge. Leaving space for "headroom" is common practice.
Glossary of Electronic Music Terms
The amount of additional signal above the nominal input level that can be sent into or out of an electronic device before clipping distortion occurs.
Pablo Aguilar
Headroom Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
Headroom or HeadRoom may refer to:
  • Vertical clearance, in engineering, the maximum distance overhead (the difference between the structural gauge and the loading gauge)
  • Headroom (audio signal processing), the difference between the nominal signal value and the maximum undistorted value
  • Headroom (photographic framing), in camera work, the space between the top of the head and the upper frame limit
  • Headroom (Bleu album), an album by alt-rock musician Bleu
  • Headroom (Don McLean album)
  • Head Room or Headroom, alternate name for Direct to Disc (FM album)
  • Max Headroom (disambiguation), fictional artificial intelligence character, and associated appearances
  • Helix HeadRoom, DOS memory management software by Helix Software Company

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Headroom Definition from Entertainment & Music Dictionaries & Glossaries
Guitar Glossary
A margin of audio safety between the current signal level and the maximum signal level possible without introducing distortion. Headroom is usually measured in decibels. When referring to a tape recorder, headroom is the difference between the standard operating level (0VU on the VU meter) and a level causing 3 percent total harmonic distortion. You can increase high frequency headroom by recording audio tape at higher speeds.
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The DJ Glossary
1) The difference (expressed in dB) between the normal operating level and clipping level of an amplifier or audio device. 2) In recording, the difference between a normal tape operating level and the level where the distortion reaches 3%.
Stanton Magnetics