Meridian Audio Digital Surround Controller G61 Manuale Utente

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   PLIIx Movie and  PLIIx THX DSP preset parameters
Parameter 
Options 
What it changes
 Surrounds
Rear, Side, All
Which of the four surround channels are generated by steering.
 Pro Logic 
Off, On
On selects an emulation of the original Pro Logic decoding. 
D S P   p r e s e t s
3 8
  Stereo and   Direct
The Stereo preset passes the left and right input signals directly to 
the left and right main speakers. Any mono or front left and right 
subwoofers continue to be used.
With the Direct preset only the left and right main speakers are 
used, bypassing any spatial processing and bass management.
There are no additional DSP preset parameters for Stereo and 
Direct.
   PLIIx Movie and  PLIIx THX
PLIIx Movie and PLIIx THX use the Dolby Pro Logic IIx DSP 
processing mode, and are the recommended choice for Dolby 
Surround encoded material. They also give excellent results with 
two-channel sources not specifically encoded for Dolby Surround, 
including two-channel Dolby Digital sources.
Pro Logic IIx re-creates 7.1-channel movie surround from the two-
channel source, using improved decoding techniques that preserve 
the directness of the soundfield, resulting in enhanced image 
stability compared with the original Pro Logic decoding. Meridian’s 
implementation of Pro Logic IIx uses proprietary code based on 48-
bit precision to give outstanding clarity.
The PLIIx THX DSP preset uses the same PLIIx processing as PLIIx 
Movie, but adds THX Cinema processing. THX is a set of standards 
and technologies developed by Lucasfilm Ltd. with the aim of 
making your experience of the film soundtrack as faithful as 
possible to what the director intended.
Re-equalistion is used to restore the correct tonal balance for 
watching a film soundtrack in a small home environment.
Timbre matching filters the information going to the surround 
speakers so that they more closely match the tonal characteristics 
of the sound coming from the front speakers. This ensures seamless 
panning between the front and surround speakers.
THX can also be used with the 5.1 Movie DSP presets; see