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Quality TV audio for all viewers and programming.
Let's face it. A few of your viewers are technologically savvy with premier home theater systems located in the ideal listening environment. The rest of your audience? All they want to do is turn on the TV and not worry about adjusting this knob and that one for better audio. Unfortunately, when TV sound reaches them, the potential dynamic range of your broadcast is compromised by background noises such as screaming kids, barking dogs and noisy clothes dryers. At the same time, family members and neighbors who are not watching television don't want to be disturbed by the programs.
Despite all that, both types of viewers want the dialog coming from their TV to be intelligible and the programming levels to be consistent, with no excuses and no loud commercials.
For these challenges, there's OPTIMOD-DAB 6200, the perfect solution for digital terrestrial, cable or satellite origination, for mono, 2-channel and Dolby Surround Encoded programming.
How does the 6200 work with AC-3's DRC?
Dynamic Range Control is only useful for digital TV using Dolby Digital (also known as AC-3) compression under certain circumstances, depending on your programming and audience. Some contemporary TV shows and feature films have been mixed to include DRC and DialNorm which scales the gain before it reaches the volume control on receivers. As a result, these programs can offer full dynamic range in a home theater environment, as well as a comfortable listening range through the average television receiver.
The rest of TV programming rarely needs DRC. News, talk and soap operas are dialog-oriented and don't require wide dynamic range. Instead, dialog intelligibility is the most important technical requirement. Bypassing the "garden variety" programming through the 6200 before broadcast, you automatically achieve source-to-source consistency while preventing commercials from being annoyingly loud.
CBS Loudness Controller tames loud commercials.
Excessively loud commercials are the single most common source of audience complaints about television sound. The 6200's built-in CBS Loudness Controller tames loud commercials. If dialog-oriented programs and commercials are processed through the 6200, your audience, whether they're listening in a home theater environment or on a 19" mono receiver, will receive a quality, consistent sound that doesn't need to be altered. Even if your audience adjusts the DRC control on their receivers, the 6200-processed programming will be consistent and intelligible regardless of their setting.
Choose a single Dolby Digital DialNorm value for all 6200-processed material and the material can be set to match the DRC-encoded programs that are passed on directly to your audience with no processing. By handling most program material automatically, the 6200 will save you time and eliminate operational hassles, while helping you to maintain control over your audio. You'll only have to set individual DialNorm values for programs that can benefit from DRC.
DAB 6200 sound sync options.
The 6200 can be easily incorporated into your DTV plant. It has the ability to pad the throughput delay so that it's exactly one frame of 24, 25 or 29.97-fps video. You can include the 6200 in systems that delay the audio an integer number of frames to maintain lip sync with the picture. There's an AES3 sync input and sample rate converters on the digital inputs and outputs. Consequently, the 6200 can accept synchronous or asynchronous digital inputs at any sample rate between 32 and 48kHz, expanding your capabilities. The AES/EBU output rate can be set to 32, 44.1, 48 and optionally synced to your station's house AES3 sync.