Articles
CALM - A crucial act to follow
Martin Moore Sudden jumps in sound level between television programmes and commercials first came to the notice of legislators after a loud commercial interrupted a family dinner at the home of US House of Representatives member Anna Eshoo. The technical parameters adopted in the draft were based on an existing recommended practice document issued in November 2009 by the US Advanced Television Systems Committee.
Tags: iss101 | audio | sound level | technical parameter | perceptual loudness | Martin Moore
Contributing Author Martin Moore Click to read
Audio basics
Larry Jordan# It is an absolutely true statement that the best way to improve the quality of your image is to improve the quality of your sound. Viewers will happily watch grainy, black-and-white images and consider it "art." However, nothing you can say will keep them in their seats if the audio is too loud or unintelligible.
Tags: iss101 | audio | science | display | levels | decibels | scale | Larry Jordan#
Contributing Author Larry Jordan# Click to read
Hearing is believing - but Testing Helps
N/A We live in the age of measurement and all too often the results are prejudiced by the methods employed and the ease of digitally processing data.
Tags: munro acoustics | audio | testing | noise levels | N/A
Contributing Author N/A Click to read
Audio phase: Robin Palmer asks why it is wobbly?
Robin Palmer 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.
Tags: iss077 | audio phase | cel-soft | technical specification | phasing | wobbly | vectorscope | levels | display | Robin Palmer
Contributing Author Robin Palmer Click to read
Metering in the age of loudness: Keeping things on the level
Martin Dyster

The new age of production and post production for HD broadcast has gotten more complicated with the advent of legislation and guidelines concerning the relative loudness between different programs, channels and, especially, commercials. TSL Professional Products has created the PAM2 MK2 and PAM PiCo compact audio and loudness meter to create a balance between meeting these different international standards.

Tags: iss073 | pam pico | tsl | pam2 mk2 | loudness | metering | level | Martin Dyster
Contributing Author Martin Dyster Click to read
Test and measurement in digital television
N/A Lets be clear about this. Test and measurement tools are not there to make life difficult for you, they are there to ensure that we get the best quality pictures and sound through the long path to the home within a required technical specification. So yes, simply put, checking that we are getting the best out of the technology that black is black, white is white, and colours can be reproduced accurately within the tolerances broadcasters set is vital.
Tags: iss054 | test and measurement | pse | ask the experts | levels | amplitude | frequency response | channel separation | noise | balance | stereo | surround channels | phase | N/A
Contributing Author N/A Click to read
Loudness Whats All The Noise About
N/A Anyone involved in our industry cant have failed to notice the amount of noise broadcasters, manufacturers and legislators are making about audio loudness. As topics go, this one is currently red hot.
Tags: junger audio | iss053 | calm | atsc | itu-r | bs1770 | bs1771 | ebu r128 | dialnorm | guidelines | level magic | N/A
Contributing Author N/A Click to read
Junger Audio Helps Broadcasters Get To Grips With 5.1 Upmixing
N/A Television viewers who have invested in home cinema systems will already know how dreadful mono and stereo audio can sound when played through 5.1 surround sound speakers. Instead of being enveloped by carefully mixed 5.1 surround sound, viewers are, instead, subjected to unbalanced audio coming at them from unpredictable directions
Tags: iss036 | upmixing | 5.1 | audio | surround sound | unbalanced | stereo sound | dolby | c800 | level magic | N/A
Contributing Author N/A Click to read
Total Articles: 8 [1-8]