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Orban Debuts Loudness Meter Software

The beta version simultaneously displays instantaneous peaks, VU, PPM, CBS Technology Center loudness and ITU BS.1770 loudness.

Orban says the first public beta of its Orban Loudness Meter Software for Windows XP and Vista is available for free download.

This is the first in a series of meters for the company. The beta version simultaneously displays instantaneous peaks, VU, PPM, CBS Technology Center loudness and ITU BS.1770 loudness. Meters include peak-hold functionality that makes the peak indications of the meters easy to see.

The CBS meter is a “short-term” loudness meter intended to display the details of moment-to-moment loudness with dynamics similar to a VU meter. It uses the Jones & Torick algorithm developed at the CBS Technology Center, published in 1981 in the SMPTE Journal, Orban said.

The software accepts two-channel stereo inputs. The VU and PPM meters are split to indicate the left and right channels. The PPM meter also displays the instantaneous peak values of the L and R digital samples.

Future paid versions of Orban Loudness Meter software will have features like logging, surround monitoring and oversampled peak measurements that indicate the peak level of the audio after D/A conversion.

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