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Meridian Surround
Controller Update
T
his Addendum describes the Surround Controller upgrade available for
all three of Meridian's current Surround Controllers, the 861, 561, and 568.
This upgrade adds three important DSP processing modes to your
Surround Controller: Dolby Pro Logic II, THX Surround EX, and Meridian
EZ. In addition, it adds two new display options.
1

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Summary of Contents for Meridian 561

  • Page 1 Controller Update his Addendum describes the Surround Controller upgrade available for all three of Meridian’s current Surround Controllers, the 861, 561, and 568. This upgrade adds three important DSP processing modes to your Surround Controller: Dolby Pro Logic II, THX Surround EX, and Meridian...
  • Page 2 Corp. Boothroyd|Stuart Meridian, Meridian, Meridian Digital Theatre, Records Ltd. MLP, EZ, and LipSync are registered trademarks of Meridian Audio Ltd. Dolby, Pro Logic, Pro Logic II, AC-3, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Lucasfilm, THX, This guide was produced by Human-Computer Interface Ltd, Cambridge, and THX Cinema are registered trademarks of Lucasfilm Ltd.
  • Page 3 Pro Logic II Pro Logic II preset parameters Dolby Pro Logic II is a new DSP processing mode designed for two-channel sources, whether or not they are encoded for Dolby Surround. It re-creates 5.1-channel movie surround from the The following preset parameters are available for all the Pro two-channel source, using improved decoding techniques that Logic II presets: preserve the directness of the sound field, resulting in enhanced...
  • Page 4 PLII Music PLII Movie and PLII THX The PLII Music preset is designed to use the Pro Logic II DSP The PLII Movie preset is optimised for theatre listening, and is processing mode to decode music sources. It provides three the recommended choice when decoding Dolby Surround additional menus to allow you adjust the sound field: movies.
  • Page 5 THX Surround EX and Meridian EZ THX Surround EX THX Surround EX and Meridian EZ are DSP processing modes that are designed to give improved surround imaging with four surround speakers. THX Surround EX allows 5.1-channel film soundtracks to be encoded with an extra surround channel during the mixing Both THX Surround EX and Meridian EZ can be used with THX process.
  • Page 6 Meridian EZ Meridian EZ Preset Parameter Meridian have used their experience in developing algorithms for Parameter Options What it changes multiple surround speakers to create a proprietary DSP Off, On, Auto* Switches Meridian EZ processing mode, called Meridian EZ. This is designed to give post-processing on or off.
  • Page 7 Additional display options MHR indicator In addition to the three new DSP processing modes provided by the upgrade, two new display features have been added. MHR (Meridian High Resolution) is a proprietary encoding format Dialog normalisation display which can be applied to digital audio streams between Meridian components.

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