Introduction, Features, System requirements – TC Electronic Radar Meter Bundle TDM User Manual
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LM5/LM5D & AM6
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INTRODUCTION
LM5D Radar Loudness Meter
LM5D represents a quantum leap away from simply measuring audio level to 
measuring perceived loudness. The old level method is responsible for unacceptable 
level jumps in television, for music CDs getting increasingly distorted, and for different 
audio formats and program genres becoming incompatible: Pristine music tracks from 
the past don’t co-exist with new recordings, TV commercials don’t fit drama, classical 
music or film and broadcast doesn’t match. The most fundamental audio issue of all 
– control of loudness – every day makes millions of people adjust the volume control 
over and over again. 
LM5D is part of a universal and ITU standardized loudness control concept, whereby 
audio may easily and consistently be measured and controlled at various stages of 
production and distribution.
LM5D works coherently together with other TC equipment, or with equipment of 
other brands adhering to the same global standard. Follow the guidelines given to 
allow audio produced for different purposes to be mixed, without low dynamic range 
material such as commercials or pop CD’s always emerging the loudest.
General Note
Loudness and True-Peak standards is work in progress. Please stay informed and up to 
date via our Loudness Glossary at www.tcelectronic.com/loudness
FEATURES
•	 Realtime	loudness	meter	adhering	to	ITU-R	BS.1770-2
•	 Loudness	History	Radar	display.
•	 True-peak	Bargraph	display.
•	 Universal	Descriptors
•	 Supports	mono,	stereo	and	5.1.
•	 Presets	for	use	in	Broadcast,	Music,	Post	and	Film.
SYSTEM REQUIREMENTS
•	 Mac	OS	X	(10.5	or	higher)	/	Windows	XP	/	Windows	7
•	 Pro	Tools	TDM	8.0	software	(or	higher)
•	 Pro	Tools	HD	or	HD	Accel	hardware
•	 iLok	USB	key
•	 iLok.com	account	and	internet	access	required	for	product	authorization
•	 System	must	meet	Digidesign’s	system	requirements	for	Pro	Tools	TDM	systems!
