Lexicon MC-1 owner manual PCM Effects and Parameters

PCM Effects and Parameters

Lexicon

SURROUND ROLLOFF allows the high frequencies of the surround channels to be attenuated with the same detection circuitry as that described for the Soundstage control. The attenuation is quite attractive on many music and broadcast sources which were not mixed for surround. When a surround source is detected, these filters are re- moved, so the rear speakers can reproduce surround events with full bandwidth. This control should be set high enough to give presence and airiness to the rear sound without placing distracting instrumental overtones or other sounds behind you. The settings also affect the side outputs.

SURROUNDS selects the type of surround decoding used by the MC-1. STEREO provides extraction of five channels of surround infor- mation from a standard 4-2-4 matrix-encoded soundtrack (Dolby Sur- round, Ultra*Stereo, etc.) The drama of this effect is dependent on the source material and is most noticeable with strong stereo music soundtracks. The DECORRELATED setting electronically alters the monaural surround channel to provide added spaciousness and envel- opment.

VOCAL ENHANCE boosts vocals in the center channel. By targeting specific frequencies, it can boost only vocals, without raising the entire center channel level (which would alter the output balance achieved during calibration).

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