For the audience at home, sound is a more important part of TV services today than ever before. New HD services and even some digitalrnstandard definition services come complete with digital 5.1 surround sound that immerses viewers in the action. But sound can also have a significant 'turn-off factor: inconsistent loudness between channels and programmes can cause annoyance and complaint. So what opportunities are there with the move to file-based broadcast chains to solve loudness problems and make handling surround sound even easier?
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