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=Just a few elements=
==Lighting==
==Light-up displays ==
===Eggcrate display===
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An eggcrate display is a number of often-incandescent, often-smallish lighbulbs in a grid (often 5 by 7),
named for the pattern of round cutouts
These were bright, and primarily used in gameshows, presumably because they would show up fine even in bright studio lighting.
Note that when showing $0123456789, not all bulbs positions are necessary.
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===Nixie tubes===
===Nixie tubes===
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https://en.wikipedia.org/wiki/Dekatron
https://en.wikipedia.org/wiki/Dekatron
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===Eggcrate display===
<!--
An eggcrate display is a number of often-incandescent, often-smallish lighbulbs in a grid (often 5 by 7),
named for the pattern of round cutouts
These were bright, and primarily used in gameshows, presumably because they would show up fine even in bright studio lighting.
Note that when showing $0123456789, not all bulbs positions are necessary.
-->
-->
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Line 71: ===Vane display===
===Vane display===
A physical seven-segment display
https://en.wikipedia.org/wiki/Vane_display
===Flip-disc===
===Flip-disc===
The physical and human spects dealing with audio, video, and images
Vision and color perception : objectively describing color · the eyes and the brain · physics, numbers, and (non)linearity · color spaces · references, links, and unsorted stuff
Image : file formats
· noise reduction
· halftoning, dithering
· illuminant correction
· Image descriptors
· Reverse image search
· image feature and contour detection
· OCR
· Image - unsorted
Video : file format notes · video encoding notes · On display speed · Screen tearing and vsync
Simpler display types · Video display notes · Display DIY
Audio physics and physiology : Sound physics and some human psychoacoustics · Descriptions used for sound and music
Noise stuff : Stray signals and noise · sound-related noise names · electronic non-coupled noise names · electronic coupled noise · ground loop · strategies to avoid coupled noise · Sampling, reproduction, and transmission distortions · (tape) noise reduction
Digital sound and processing :
capture, storage, reproduction · on APIs (and latency) · programming and codecs · some glossary · Audio and signal processing - unsorted stuff
Music electronics :
device voltage and impedance, audio and otherwise ·
amps and speakers ·
basic audio hacks ·
Simple ADCs and DACs ·
digital audio ·
multichannel and surround microphones · studio and stage notes ·
Effects ·
sync
Electronic music :
Electronic music - musical terms MIDI · Some history, ways of making noises · Gaming synth · microcontroller synth Modular synth (eurorack, mostly):
sync · power supply · formats (physical, interconnects) DAW: Ableton notes · MuLab notes · Mainstage notes Unsorted : Visuals DIY · Signal analysis, modeling, processing (some audio, some more generic) · Music fingerprinting and identification
For more, see Category:Audio, video, images
Light-up displays Eggcrate display Nixie tubes
Dekatron Mechanical Mechanical counter https://en.wikipedia.org/wiki/Mechanical_counter
Split-flap https://en.wikipedia.org/wiki/Split-flap_display
Vane display A physical seven-segment display
https://en.wikipedia.org/wiki/Vane_display
Flip-disc https://en.wikipedia.org/wiki/Flip-disc_display
Other flipping types LED segments 7-segment and others ✎ This article/section is a stub — some half-sorted notes, not necessarily checked, not necessarily correct. Feel free to ignore, or tell me about it.
7-segment, 9-segment display, 14-segment, and 16-segment display. If meant for numbers will be a dot next to each (also common in general), if meant for time there will be a colon in one position.
Very typically LEDs (with a common cathode or anode), though similar ideas are sometimes implemented in other display types - notably the electromechanical one, and also sometimes VFD.
often driven multiplexed, so only one of them is on at a time.
often done via a controller that handles that multiplexing for you
More-than-7-segment displays are preferred for that.
https://en.wikipedia.org/wiki/Seven-segment_display
