background image

Summary of Contents for Loudness Radar Meter LM5

Page 1: ......

Page 2: ...If you can t find an answer online you have the option of submitting a question to our technical support staff who will then reply to you by e mail The TC Support Team is on constant alert to help yo...

Page 3: ...t and internet access required for product authorization System must meet Digidesign s system requirements for Pro Tools TDM systems Since 1998 TC has performed listening tests and evaluation of loudn...

Page 4: ...dcast or film The engineer who may not be an audio expert should be able to identify and consciously work with loudness developments within the limits of a target distribution platform and with predic...

Page 5: ...NESS HISTORY RADAR The Loudness Radar shows a history of loudness over time The loudness landscape may be used to judge if loudness emphasis is put where you want it to be If dialog segments are balan...

Page 6: ...ved if you aim Center of Gravity somewhat higher than the actual goal For a music program for instance the aim should be approximately 3 LU higher E E N N G G L L I I S S H H 8 LM5 LM5D TDM Universal...

Page 7: ...s sample rate converters data reduction systems and consumer electronics than digital sample meters used e g in CD mastering Fig 7 PPM True peak meter example showing Madonna s Hung Up Note the extrem...

Page 8: ...ts up OBS Indicator sets the conditions for the OBS indicator to light up Turn it off if you don t want warnings E E N N G G L L I I S S H H 12 LM5 LM5D TDM LM5 LM5D TDM 13 E E N N G G L L I I S S H H...

Page 9: ...U Equals 20 LFS Low Level Below 9 LU Equals 29 LFS in this case Radar Resolution 4 dB per division True peak Indicator 6 dBFS Fig 9 Examples of 5 1 movie left Matrix and stereo classical music right B...

Page 10: ...now known as K weighting and a channel weighting scheme These two later additions have been less verified than the basic Leq RLB frequency weighting The other aspect of BS 1770 the algorithm to measu...

Page 11: ...as examples of calibration tone Radar displays DISPLAY LM5 may use either the measurement unit of LU Loudness Units or LFS Loudness Full Scale LU and LFS are measurements in dB reflecting the estimate...

Page 12: ...n by people not primarily concerned with audio Journalists musicians video editors marketing professionals etc Using only dialog based audio measurements in digital broadcast has led to ambiguous leve...

Reviews: