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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
Frame rate of NTSC prior to color. Frame rate of the ATSC/SMPTE HDEP standard. A potential new film standard.
Industry:Entertainment
A new photographic system conceived by Kodak and developed jointly with Canon, Fuji, Minolta, and Nikon. The APS was launched in April 1996. APS also represents the file format used to store data on the new film's magnetic coating.
Industry:Entertainment
A concept for saving money on film stock by shooting each 35 mm frame in an area covered by three perforations rather than four.
The savings is more than enough to compensate for switching from 24 frames per second to 30. Three-perf naturally accommodates a 1.78:1 (16:9) aspect ratio and can be easily masked to the 1.85:1 common in U.S. movie theaters. It changes the shoot-and-protect concept of using theatrical film on television, however, from one in which the protected area is extended vertically to one in which the shooting area is reduced horizontally.
Industry:Entertainment
The US-based organization that is defining the high definition television standard for the United States. A sort of NTSE for ATV. It is comprised of three technology groups and a number of smaller committees. T1 Group is studying receiver- compatible improved NTSC. T2 Group is studying non-receiver-compatible 525 scanning line production, distribution, and display systems. T3 Group is studying HDTV.
Industry:Entertainment
Nominal data rate of the third level of the hierarchy of ISDN in North America. See also DS3.
Industry:Entertainment
Used in mixing boards to override the normal monitoring path in order to monitor a specific signal at a predefined point in the mixer. Unlike PFL, the AFL signal definition is taken after the fader of a channel or group buss such that the level of the fader will affect the level heard in the AFL monitor circuit. AFL is sometimes also taken after the pan pot which also allows the engineer to monitor the signal with the pan position as it is in the mix. AFL is a handy way to monitor a small group of related instruments by themselves with all of their eq, level, and pan information reproduced as it is in the overall mix. An AFL circuit that includes pan information is often called “solo” or “solo in place” depending upon who builds the mixer.
Industry:Entertainment
Composite digital video as used in D2 and D3 VTRs. Stands for four times the frequency of subcarrier, which is the sampling rate used. In NTSC, 4FSC is 14.3 MHz and in PAL it is 17.7 MHz.
Industry:Entertainment
MIDI data sent when pressure is applied to a keyboard after the key has been struck, and while it is being held down or sustained.
Aftertouch is often routed to control vibrato, volume, and other parameters.
There are two types: the most common is Channel Aftertouch which looks at the keys being held, and transmits only the highest aftertouch value among them. Less common is Polyphonic Aftertouch, which allows each key being held to transmit a separate, independent aftertouch value. While polyphonic aftertouch can be extremely expressive, it can also be difficult for the unskilled to control, and can result in the transmission of a great deal of unnecessary MIDI data, eating bandwidth and slowing MIDI response time.
Industry:Entertainment
An arrangement of five audio channels (left, center, right, left-surround, and right-surround) and one subwoofer channel.
Industry:Entertainment
The ability of a switcher console to indicate to an operator which video sources and keys are on-air at any given time. Ampex switchers have “true” air tally in that they sense actual presence of sources.
Industry:Entertainment
