Meridian 861 User's Guide download pdf (Page 34)

DSP Presets

PLIIx Music

The PLIIx Music preset is designed to use the Pro

Logic IIx DSP processing mode to decode music

sources. It provides additional Width, Dimension,

and Panorama preset parameters to allow you to

adjust the soundfield.

PLII Music DSP preset parameters

Parameter Options What it changes

Steered All Steered Rear,

Steered Side,

Steered All

Which of the four

surround channels are

generated by steering.

Width 0 to 7 The centre spread,

where 0 is full centre

and 7 is full left and

right.

Dimension -3 to +3 The spatial soundfield,

where -3 puts the

balance to the rear of

the room and +3 puts it

to the front.

Panorama No, Yes Extends the front stereo

image to include the

surround speakers, to

give a wrap-around

effect.

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-equalisation is used to restore the correct tonal

balance for watching a film soundtrack in a small home

environment. The information going to the surround

speakers is filtered so that it closely matches the tonal

characteristics of the sound coming from the front

speakers, to ensure seamless panning between the

front and surround speakers.

THX can also be used with the 5.1 Movie DSP

presets; see

THX

, page 33.

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Meridian 861 User's Guide Page 34

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