| 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
- Subtitle format notes
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
On the stage side: microphones · studio and stage notes ·
Effects ·
sync
Electronic music:
- Electronic music - musical and technical terms
- MIDI ·
- Some history, ways of making noises
- Gaming synth ·
- VCO, LFO, DCO, DDS notes
- microcontroller synth
- Modular synth (eurorack, mostly):
- sync · power supply · formats (physical, interconnects)
- DIY
- physical
- Electrical components, small building blocks
- Learning from existing devices
- Electronic music - modular - DIY
- 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
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Formats
Formats include:
- Plain-text:
- Various, but most importantly:
- SRT (SubRip [1] [2]) - very simple (but not too well standardized, and some advanced features are not well handled by some players/editors)
- Subtitle editors' internal formats (text, binary, xml, other), some of which became more widely used:
- SSA (SubStation Alpha, software of the same name) [3] [4]
- ASS (Advanced Substation Alpha, aegisub) - an extension of SSA
- AS5 (ASS version 5) [5] [6]
- AQTitle(verify) [7]
- JacoSub [8]
- XombieSub (old?)
- Turbotitler (old)
- Image-based: (avoids font problems, larger)
- VOBsub (.sub and .idx) are subtitle streams as used by DVD (verify)
- MicroDVD (.sub), specific to the MicroDVD player [9]
- PRS (Pre-rendered subtitles) stores (PNG) images [10]
- XML-based
- USF (Universal Subtitle Format) [11] [12], and XML format that is not very common outside of Matroska containers
- SSF (Structured Subtitles Format) is a newer XML-based format (apparently with no current major interest or support [13])
- Other/unsorted (and other internal formats):
- VTT, a.k.a. WebVTT[14][15]
- SAMI (.smi) [16], often used in Korea
- DVD-based/derived (CC, SPU, VobSub)
- Karaoke formats (.lrc, .vkt, )
- MPSub (.sub), a format internal to mplayer [17]
- MPEG-4 Timed Text [18]
- Power DivX (.psb) [19]
- ViPlay Subtitle File (.vsf)
- Phoenix Japanimation Society (.pjs) [20] (old(verify))
- Subsonic (.sub) [21]
- ZeroG (.zeg) [22]
- Adove Encore (.txt) [23]
- MPL2 [24]
- VPlayer [25]
- Sasami Script (.s2k)
- SubViewer (verify)
- RT (verify)
- DVB (verify)
- Teletext (verify)
- LRC[26] (Lyrics, meant for lyrics/karaoke on audio)
- TTML [27]
- ARIB (Association of Radio Industries and Businesses)
Software
Editors and other utilities: