There will always be the need for broadcasters to apply dynamic range compression to some types of programme materiel, either because of the limitations of the broadcasting medium or because of listeners' requirements. The Eureka 147 DAB digital audio broadcasting system enables broadcasters to transmit programmes with a relatively wide dynamic range, accompanied by a dynamic range control (DRC) signal which the listener may use to effect unobtrusive compression of the programme dynamics, if required. A music/speech control (MSC) signal, which is also transmitted, will enable the listener to balance the loudness of different types of programme according to taste.
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