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10.11.2002
Originally featured on BroadcastEngineering.com
Dolby addresses TV loudness

Tired of those loud car dealer commercials? Dolby Laboratories demonstrated a technology at last week’s Audio Engineering Society (AES) convention that’s designed to help TV broadcasters deal with the ongoing problem of loudness inconsistencies between television channels and programs.



At AES last week, Dolby demonstrated the LM100 Broadcast Loudness Meter which is designed to measure the subjective loudness of broadcast programming.

The audio manufacturer showed its LM100 Broadcast Loudness Meter, the first device designed to measure the subjective loudness of broadcast programming, providing the television industry a simple method for quantifying perceived audio levels and a means to eliminate subjective loudness discrepancies between programs and channels.

Broadcasters have traditionally controlled program levels using a VU or PPM meter, neither of which measures subjective loudness. Dolby said the LM100 is the first broadcast product to measure the subjective loudness of speech, the most important part of broadcast programming, and present the results in an easy-to-understand numerical format. It has applications throughout the broadcast industry from post production and quality control to final transmission and program turnaround.

For more information, visit www.dolby.com.

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