Evertz IntelliGain®

Skrivet av superadmin fre, 2011-09-02 11:49

Evertz Inter-Program and Intra-Program Loudness Control

Audio Loudness problems are nothing new. For years broadcasters have had
the challenge of providing audio and video content to their target audience while
minimizing complaints about the drastic variations in audio loudness between
program and commercial.

There are two main complaints
1. Commercial Loudness
2. Channel to Channel loudness variation.

As more and more channels with inconsistent audio levels are distributed to
the home, public annoyance has increased. Some recent studies have shown
up to a 17dB deviation in perceived loudness of programming between channels.

Home listeners have had to tolerate this problem by either muting the commercials
or adjusting the volume as they watch their programs.

Evertz has recognized this dilemma and presents IntelliGain® (patent pending)
as the solution. This technology can be applied to a number of Evertz products,
including frame synchronizers, protection switches, audio embedders and
de-embedders just to name a few.

  • Consistent audio loudness levels within a channel and/or program
  • Automatic detection and level adjust for loud commercials
  • Gain control within a program interval to preserve audio dynamic range
  • Artifact-free transitions between program and commercials
  • Elimination of drastic volume changes during commercials and interstitials
  • Fully Integrated Dynamic Range Processor, also referred to as a compander
  • Ideal for aggregator applications and multi-channel playout facilities
    (DTH, Cable, IPTV...)
  • VistaLINK® controlled and monitored!

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