Meridian America Meridian 518 manual Advanced operation using the Remote Control

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Using 518 in Hi Fi Systems

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20C16 67

Input/output choice and gain setting, (This example indicates 20 bits of input and 16 bits of output in consumer format), or

44k1 67

Sampling frequency and gain. If there is no input signal the display would indicate no lock as follows:

N.L. 67

Emphasis Light

There is a light on the front panel Emph which indicates when the channel status suggests that the incoming audio is pre-emphasised. It is not affected by the user's settings on the 518 itself.

Clip Display

Some of the processing modes in 518 deliberately allow you to increase the overall level of the signal. If the output signal exceeds full scale, the 518:

clips (saturates) at full code (normally sounding benign on short overloads), and

displays a clip message like:

ClipL 89

The clip message will indicate whether the overload occurred on Left,

Right or both.

Clipping in DSP has nothing like the bad sonic consequences of clipping analogue systems. Normally small amounts of clipping cannot be heard.

Software version

In Standby:

1.Press and hold Display.

The display will show the version number of the microcontroller software, followed by the DSP version e.g.:

DSP 1.5

Advanced operation using the Remote Control

Putting the 518 in Standby

1.press Standby on the Remote Control or

put another Meridian component into Standby.

Coming out of Standby

To start up the 518 from Standby

1.Select a source from the front panel or the Remote Control (MSR). or

If the 518 is part of a Meridian system, bring any component out of Standby. For example start up a Meridian CD-player.

518 User Guide

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Contents 1992, 1993 Contents Simple rules for using Appendix 4 -Resolution EnhancementAppendix 2 Hints on Mastering Designed & manufactured in the UK by Sales and service in the UKSales and service in the USA AcknowledgementsAbout the 500 Series IntroductionAbout this manual Conventions used in this manualUnpacking Installing yourGeneral precautions ConnectionsPlanning setup Whats inside a 518?Overview as Preamp Type What about analogue sources? What else do I need to know?Overview as Resolution Enhancement Processor Type CD or LaserDisc playback improvementMeridian DSP speaker improvement Meridian Surround improvement Overview as Mastering Processor Type Overview as Multimedia Processor TypeCustomising features ∙ Normal ∙ Standby ∙ Type ∙ ConfigBasic operation Switching onStarting off with StandbySelecting a source Adjusting the volumeOperating 518 as a Control Unit Type OutShape a DitherFlat Shape BDisplay Advanced operation using the Remote Control Muting the sound Operating 518 as Resolution Enhancer TypeVolume control Menu KeysWith the Remote Control Operation summaryMemory Config control settings Restoring default settingsConfig an overview Customising 518, an overviewConfig sources and inputs How to customiseCustomising, general procedure How to change to Type or ConfigMaking changes to an existing setup Customising using TypeHow to change back to Normal Setting Type ControllerConfig Customising using ConfigHow to use Config Selecting TypesSetting the product address for Selecting the controller modeSetting the system address for Setting the Standby mode forSetting the Volume mode for Setting the Blank display option forSetting the Emphasis option for Setting the Volume displaySetting up sources Choosing source logosVol. dB Changing the input for a source Choosing the Comms type for a source productChoosing the address of a source product Digital input connections ConnectionsDigital audio connections Digital output connectionTo connect to other Meridian 500 Series equipment Connecting to Meridian Digital speakersCommunications connections ConPart Mastering ProcessorMeridian 500 Comms warning DescriptionAs a Mastering or Multimedia Processor Type D1 +2Emph +2 ShpB +2Making Recordings Transfer to editor Transfer to the final carrierNoise shaper characteristics Shaper Advantage 44.1kHz 48kHz Normal Pre-emphasisDigital Audio and Quantisation Operating BackgroundTransparency in digital systems DitherNoise Shaping with dither Dynamic RangePre and De-emphasis No change in sample size Simple rules for usingStep-down in sample word size Step up in dynamic rangeSpecification Additional technical informationHelp Cleaning Maintenance & ServicePart Appendix 1 Noise Shapes NoiseAbove noise spectrum for Shape B at 44.1kHz 0Hz 5kHz 10kHz 15kHz 20kHz Appendix 2 Hints on Mastering with noise-shaping Vulnerability of the signalAudible results of digital errors and editing Requirements for D/A conversionAppendix 2 Hints on Mastering Appendix 3 RS232 Handset FunctionsGoTo Functions Appendix 4 -Resolution Enhancement Jitter and de-jitteringDynamic-range FrequencyDynamic-range optimisation with Gain Dynamic-range optimisation with Pre-emphasisShowing CD pre- and de-emphasis curves Dynamic-range optimisation with Noise-shaped Dither DAC enhancement by using high-frequency dither DAC or channel enhancement by word-length matchingContents IndexIndex User Guide User Guide