What does a vectorscope do?

The vectorscope is used to measure the color information in a video image, while the waveform displays the brightness, or luminance, of a shot.

What is the difference between a vectorscope and a waveform monitor?

Whereas a waveform monitor normally displays a plot of signal vs. time, a vectorscope (Figure 6) is an XY plot of color (hue) as an angular component of a polar display, much like some familiar color wheels used in color graphics, with the signal amplitude represented by the distance from the center (black).

What are the boxes in a vectorscope?

NTSC vectorscopes have one set of boxes for the color bars, while their PAL counterparts have two sets of boxes, because the R-Y chrominance component in PAL reverses in phase on alternating lines.

What is the line on a vectorscope?

The line between red and yellow on the Selective Vectorscope is the Skin Tone line, which allows you to quickly and effectively check for the accuracy of all skin tones in your footage. All skin types should fall along this line if you want them to look realistic.

What is a waveform monitor used for?

The waveform monitor is used to evaluate the brightness of your image, regardless of the color. The scale of the waveform monitor is 0 to 100 IRE. IRE represents the scale invented by the International Radio Engineers society.

How does a oscilloscope work?

An analog oscilloscope works by directly applying a voltage being measured to an electron beam moving across the oscilloscope screen. The voltage deflects the beam up and down proportionally, tracing the waveform on the screen. This gives an immediate picture of the waveform.

Is there a vectorscope in Photoshop?

Keep your color correct with Premiere Pro. There are two vectorscope options available: Vectorscope HLS and Vectorscope YUV. HLS stands for hue, lightness, and saturation, and this scope will give you an easy-to-read general overview of the color information within your clip.

How do waveforms work?

An audio wave is the vibration of air molecules, which is how sound travels. A waveform describes a wave by graphing how an air molecule is displaced, over time. Amplitude is the strength of a wave’s effect; the higher the amplitude, the more the air molecules are displaced.

How many waveforms are there?

Each of the three basic waveform outputs, sinusoidal, triangular and square are simultaneously available from independent output terminals. The frequency range of the 8038 is voltage controllable but not a linear function.

What does a waveform monitor show?

A waveform monitor is a special type of oscilloscope used in television production applications. It is typically used to measure and display the level, or voltage, of a video signal with respect to time.

Can oscilloscope measure DC voltage?

TESTING DC VOLTAGE WITH OSCILLOSCOPES AND DIGITAL MULTIMETERS. DC voltage can measured using either an oscilloscope or a digital multimeter. Each piece of testing equipment has its advantages and disadvantages.

How does oscilloscope measures voltage?

Most modern oscilloscopes provide the option to measure DC voltage automatically. However you can measure it manually by ‘counting’ the vertical reticules and multiplying by the volts per division.

What is a vectorscope?

Vectorscope. A vectorscope is a special type of oscilloscope used in both audio and video applications. Whereas an oscilloscope or waveform monitor normally displays a plot of signal vs. time, a vectorscope displays an X-Y plot of two signals, which can reveal details about the relationship between these two signals.

What is the reference signal used for the vectorscope?

The reference signal used for the vectorscope’s display is the color burst that is transmitted before each line of video, which for NTSC is defined to have a phase of 180°, corresponding to the nine-o’clock position on the graticule.

How does a SECAM vectorscope work?

A vectorscope for SECAM uses a demodulator similar to the one found in a SECAM receiver to retrieve the U and V colour signals since they are transmitted one at a time (Thomson 8300 Vecamscope). On older vectorscopes that use cathode ray tubes (CRTs), the graticule was often a silk-screened overlay superimposed over the front surface of the screen.

Why does this online vectorscope use stereo audio?

This online vectorscope uses stereo audio as its input. The two channels are plotted against each other on the x and y axes to produce a range of interesting patterns. Please note, the data for the Ballerina and Dolphin curves takes a few seconds to compute.