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Filtered Tag: vectorscope (5 results)

Managing Technological Change

Continual technological change in the broadcast and media industries can make it difficult to plan for the mid to long term. Typically, broadcasters and media organisation are still implementing the last set of changes to working practices when the next changes come along. Display manufacturers and viewer expectation help drive the different techno...

Submitted by Alan Wheable
Published 08 September 2018

How to read Video Scopes

by Larry Jordan Issue 98 - February 2015 Understanding what video scopes tell us about our images is essential to creating great looking images; regardless of which video editing software you are using. In this article, I want to explain the basics of video scopes and how to read them. A QUICK BACKGROUNDEach video image is composed of pixels, small...

Submitted by Larry Jordan#
Published 01 March 2015

Audio phase: Robin Palmer asks why it is wobbly?

Phase meters and audio vectorscopes are to be found on most test kit involved with audio monitoring. This is important because left/right audio correlation problems between the channels will distort the stereo ‘image’ and could degrade mono compatibility. If left and right phase should ever be inverted, any centered identical audio would be cancell...

Submitted by Robin Palmer
Published 01 June 2013

Wibbly Wobbly Waveforms

The very first analytical electronic instrument, developed in the late 1890s, was the oscilloscope. This used a cathode ray tube (CRT) to paint a graph of voltage on the Y axis versus time on the X axis. Once television became a practical reality in the 1930s, the same instrument was applied to the video output from the camera and became the very u...

Submitted by Bob Pank#
Published 01 November 2012

Pointing out the right colours

In the old days of PAL and NTSC analogue television, a vectorscope was an essential tool for examining chroma at every part for the programme production and transmission chain. This was because the colour information was carried as a phase and amplitude modulation which could be sensitive to a variety of transmission or recording non-linearities an...

Submitted by Bob Pank#
Published 01 October 2012