
AC-3  Effects and Parameters
| 5.1 Logic 7 combines all the features of Dolby Digital  | 5.1 Logic 7 | 
| ments by Lexicon and LucasFilm. This effect uses Logic 7 matrix technology | 
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| to enhance the steering between the side speakers and the rear speakers, so | 
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| sounds intended to come from behind the listener actually do come from | 
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| behind. This effect also includes the adaptive decorrelation and  | 
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| izer features of THX 5.1. | 
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5.1Logic 7 provides the ultimate in film reproduction. It brings out all the increased excitement and spaciousness a 7 channel speaker system can produce.
| Parameter | Initial Value | Range | 
| 
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| COMPRESSION | OFF | AUTO, ON, OFF | 
| VOCAL ENHANCE | +0.0dB | +0.0dB, +3.0dB, +6.0dB | 
| ON | ON, OFF | |
| BASS ENHANCE | OFF | ON, OFF | 
| REAR DELAY OFFSET | 5ms | |
| SIDE LEVEL | +00dB | OFF,  | 
| REAR LEVEL | +00dB | OFF,  | 
| LFE MIX LEVEL | +0.0dB | |
| SUBWOOFER LVL | +00dB | OFF,  | 
| CUSTOM | 
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| The Dolby Digital effect decodes Dolby  | Dolby Digital | 
| analog Dolby surround decoding, Dolby Digital uses five discrete full- | 
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| 
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| range channels and a sixth dedicated, Low Frequency Effect (LFE) channel. | 
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| In this effect, any rear speakers present are connected in parallel with the | 
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| side speakers. This is the standard Dolby Digital decoder. It does not | 
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| include the enhancements by Lexicon or LucasFilm which are available | 
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with other 
| Parameter | Initial Value | Range | 
| 
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| COMPRESSION | OFF | AUTO, ON, OFF | 
| VOCAL ENHANCE | +0.0dB | +0.0dB, +3.0dB, +6.0dB | 
| BASS ENHANCE | OFF | ON, OFF | 
| SIDE LEVEL | +00dB | OFF,  | 
| REAR LEVEL | +00dB | OFF,  | 
| LFE MIX LEVEL | +0.0dB | |
| SUBWOOFER LVL | +00dB | OFF,  | 
| CUSTOM | 
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