Description:
Tired of viewers complaining about loudness-level inconsistencies between programs or channels of your television service? Finally, there's an easy way to effectively measure your program loudness that resolves this dilemma.
The Dolby® LM100-NTSC Broadcast Loudness Meter is a tool for measuring the subjective loudness of dialogue within broadcast programming. The Cable Industry has long required a simple method of determining program audio levels to assist in addressing loudness discrepancies between programs or channels of television services.
The LM100-NTSC features a revolutionary measurement technology, Dialogue Intelligence TM. Dialogue Intelligence has been developed to analyze the input signal and only measure the program loudness during the presence of dialogue.
LM100-NTSC measurement results are presented in an easy-to-understand numerical format. This eliminates the variations in results multiple operators often find when using traditional VU or PPM meters (neither of which measures subjective loudness).
A set of user-definable alarms and monitoring functions can be used to inform an operator of input loss, signal clipping, overmodulation, high or low signal levels, silence, and incorrectly set dialogue level (dialnorm) values. A dedicated GPI/O port provides a tally of these alarm conditions, with more extensive monitoring available through the serial ports and an internal event log.
The LM100-NTSC includes an RF input specifically for NTSC CATV and “off-air” television measurement applications. Logging is referenced to the internal time-of-day clock. |
Features:
 Core Measurement Algorithm Leq(A) (IEC 60804)
Dialogue Intelligence™ Algorithm Proprietary-patent pending
Audio Sampling Rates 32, 44.1 & 48kHz
Digital Audio Input
Analog Audio Inputs
Analog Audio Output
Headphone Output
Serial Remote Control Input
Alarm Port
General Purpose Input/Output (GPI/0) Port
Measurement/Analysis System Log
RF Input is F-type female connector with internal 75 ohm termination
Tuner frequency range: 55.25 to 801.25 MHz
Supports BTSC encoded stereo signals
Selectable CATV or "off-air" modes
CATV mode supports the Cable Television Channel Inentification Plan per EIA 542
User Selectable: Standard, HRC or IRC
Video Output: composite, BNC female |
