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DK-Technologies' new MSD100C Loudness is designed to tackle the issue of the perceived loudness of audio signals. Loudness is a stand-alone unit that incorporates ITU recommendations BS.1770 and BS.1771, which specify the algorithms that should be used to measure audio programme loudness. It is able to display the loudness of the individual audio channels, as well as the sum of the left and right signals, and can be used in any broadcast or post production facility as a health check during production or prior to transmission.

The MSD100C Loudness incorporates an algorithm that is recommended by ITU. This is based on an extension of the Leq(RLB) algorithm to cover stereo and monophonic audio signals. The actual unit provides accurate loudness matching of audio from a number of different sources and offers a selection of working modes, including Fast mode for real time viewing of loudness, Integrated mode for measuring the loudness of a recorded section or the complete recording and Gated mode for viewing loudness of audio material with long pauses (e.g. golf tournaments).

With selectable digital and analogue stereo inputs, the MSD100C Loudness displays left and right channel loudness as well as the summed loudness. It also delivers the information as a numeric readout. The meter uses the Loudness Units (LU) scale, covering a range from -18db to +9dB. It also features an audio vector oscilloscope, phase correlation meter displays, a full VGA colour display and VGA output for external display.

Due to ship by the end of the year, the MSD100C Loudness is available of a variety of languages and can be delivered with different scales to suit different broadcasters, while still maintaining the consistent loudness measurement as set out by the ITU.

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