Collectible and/or specialty electronics are sold without testing. 
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Sold as is. No accessories included. Please see photos.

The Dolby LM100 Broadcast Loudness Meter is a tool for measuring the subjective loudness of dialogue within broadcast programming.

 

Differences in audio levels between programs, or between programs and commercials, are a major annoyance to TV viewers. However, although obvious to the viewer, these differences have proven difficult for broadcasters to measure with conventional methods and equipment. The Dolby LM100 Broadcast Loudness Meter solves that problem through Dialogue Intelligence, a revolutionary technology developed specifically to measure the perceived loudness of dialogue. Research shows that most viewers adjust TV volume to normalize dialogue levels. By analyzing the input signal and measuring program loudness only during the presence of speech, Dialogue Intelligence objectively measures what viewers subjectively experience.