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<\/a><\/h4>\nSignal formats<\/h4>\n
Note: everything here refers to NTSC which is the standard video format in the USA.<\/p>\n
Composite<\/h5>\n
“Composite video<\/b>\u00a0(one channel) is an\u00a0<\/span>analog video<\/a>\u00a0transmission (without\u00a0<\/span>audio<\/a>) that carries\u00a0<\/span>standard definition<\/a>\u00a0video typically at\u00a0<\/span>480i<\/a>\u00a0or\u00a0<\/span>576i<\/a>\u00a0<\/span>resolution<\/a>.” -from Wikipedia<\/span><\/p>\n Composite uses the yellow RCA plugs found on most consumer video devices. It is also the standard for LZX analog modular systems http:\/\/www.lzxindustries.net<\/a>.<\/p>\n Because composite is the\u00a0most common format, the approach here will be to convert everything else to composite. With a few exceptions.<\/p>\n S-video uses several channels to convey AV data. The easiest way to convert S-video to composite, or vice-versa is to use a VCR or capture device that has s-video IO.<\/p>\n Older video devices use coaxial cables with F connectors to transmit modulated AV signals on channels 3 and 4.<\/p>\n To convert from composite to TV use an RF modulator:<\/p>\n You can also use a VCR as an RF modulator.<\/p>\n RF modulators can be used as TV transmitters. \u00a0https:\/\/reactivemusic.net\/?p=12355<\/a><\/p>\n To convert from TV to composite, use an RF demodulator. The demodulator removes the VHF carrier, leaving a baseband composite signal.<\/p>\n Demodulators can be expensive and difficult to find, so if you are not too concerned about image quality its easier to use a VCR. Connect the input signal to the TV coax input. Set the VCR to channel 3 or 4. The signal passes through to the composite output (yellow RCA jack). This method also works as an inexpensive method of TBC (time base correction).<\/p>\n Use a PC to TV converter to convert VGA signals to composite:\u00a0https:\/\/reactivemusic.net\/?p=18716<\/a><\/p>\n There are many options for video capture depending on which operating system and applications you are using.<\/p>\n Here are several methods that work with MAC OS<\/p>\n Grass Valley ADVC 110 Digital Video Converter – Firewire 400\u00a0http:\/\/www.grassvalley.com\/products\/advc110<\/a><\/p>\n Some camcorders work as digital media converters. It may be difficult to determine which ones do this. \u00a0 Here’s a list of Sony camcorders that have this capability:\u00a0http:\/\/forum.videohelp.com\/threads\/355121-Sony-Handycam-Digital8-camcorders-with-analog-digital-passthru<\/a><\/p>\n Another list:\u00a0http:\/\/fccug.org\/2222-10b%20How%20to%20convert%20an%20analog%20signal%20to%20digital.pdf<\/a><\/p>\n Some home-theatre system receivers will convert a variety of formats. I have not used this method.<\/p>\n To capture video from a mobile device, use a streaming program like Airplay or Airserver http:\/\/www.airserver.com\/Mac<\/a>, or an adapter cable like\u00a0http:\/\/store.apple.com\/us\/product\/MD098AM\/A\/apple-digital-av-adapter<\/a>.<\/p>\n With MAC OS Yosemite Airplay capability might be built in?<\/p>\n Macam supports a variety of web cams.\u00a0https:\/\/reactivemusic.net\/?p=19000<\/a><\/p>\n Here are some of my favorite ways to generate and process video.<\/p>\nS-video<\/h5>\n
VHF analog TV<\/h5>\n
RF modulators and demodulators<\/h5>\n
RF modulators<\/h6>\n
<\/a><\/p>\nRF demodulators<\/h6>\n
VGA<\/h5>\n
<\/a><\/p>\nVideo capture<\/h5>\n
Capture devices<\/h6>\n
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Media converters<\/h6>\n
Analog to digital pass-through<\/h6>\n
iOS, Android<\/h6>\n
Web cams<\/h6>\n
Examples<\/h4>\n
Videonics Video Equalizer<\/h5>\n