| The physical and human spects dealing with audio, video, and images
Image: file formats
· image noise reduction
· blur detection
· halftoning, dithering
· illuminant correction
· Image descriptors
· Reverse image search
· image feature and contour detection
· OCR
· Image - unsorted
Displays: Video display notes · before framebuffers · Simpler display types · Display DIY ·· Screen tearing and vsync · Arguments for 60fps / 60Hz in gaming
Video: file format notes · video encoding notes · Subtitle format notes
Vision and color perception: physics, numbers, and (non)linearity · objectively describing color · the eyes and the brain · color spaces · references, links, and unsorted stuff · Lux and lumen
Audio physics and physiology: Sound physics and some human psychoacoustics · Descriptions used for sound and music · multichannel and surround · Sound level meter notes
Noise related: Stray signals and noise · sound-related noise names · electronic non-coupled noise names · electronic coupled noise · ground loop · (tape) noise reduction · strategies to avoid coupled noise · emphasis · Sampling, reproduction, and transmission distortions
Digital sound and processing:
capture, storage, reproduction · on APIs (and latency) · programming and codecs · some glossary · audio noise reduction · 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
On the stage side: microphones ·
audio levels & technical gritty ·
devices you'll use ·
cables, connectors, adapters ·
effect hardware · sync
Electronic music and DIY:
- approaches to making sounds · some history · interesting instruments · Gaming synth ·
- Synth: MIDI · sync · Electrical components, small building blocks · VCO, LFO, DCO, DDS notes · microcontroller synth · audio platforms
- modular synth: formats (physical, interconnects) · physical · Learning from existing devices · eurorack power supply ·· Modules/makers of note: Mutable instruments
- DAW: audio plugins · Ableton notes · MuLab notes · Mainstage notes · VCV Rack 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: