Meridian America Meridian 518 manual Operating 518 as Resolution Enhancer Type, Muting the sound

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Using 518 in Hi Fi Systems	19

Muting the sound

The mute facility cuts off the sound by setting the volume level to zero.

To mute the sound

1.Press Mute on the Remote Control. The output will mute and the display will change to:

Muted

To restore the sound

1.Press Mute a second time.

The volume level and display will be restored.

Menu Keys

When the 518 is used as a control unit and it is the system controller, then the four menu keys on the MSR can be used to access the DSP, Dither, In and Out menu functions.

To access a menu

1.Press w or e on the remote. The menu will be displayed.

To change a menu

1. Press n or s on the remote.

Operating 518 as Resolution Enhancer (Type 1)

Note Do not use Resolution Enhancement mode if you want the 518 to provide the volume control. (Use Type 0)

Volume control

The 518 does not provide the main system volume control in Resolution enhancement (Type 1) mode.

If 518 is used with other Meridian controllers like 565 or DSP loudspeakers, they will provide the volume function and the normal Meridian 0–99 volume number display.

In Resolution Enhancement mode, 518 does provide a secondary gain control which allows you to maximise the resolution of down-stream processors and DACs by raising each piece to full digital code.

This function is called 'Gain' and does not follow the system volume control.

Gain control

Gain control is provided in one decibel steps from +12 dB down to -99 dB.

1. Press ▲

The gain will increase in 1dB increments, and the display will show the gain in dBs, something like:

CD +2

1.Press ▼, to decrease the gain.

518 User Guide

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Contents 1992, 1993 Contents Appendix 4 -Resolution Enhancement Simple rules for usingAppendix 2 Hints on Mastering Acknowledgements Sales and service in the UKSales and service in the USA Designed & manufactured in the UK byConventions used in this manual IntroductionAbout this manual About the 500 SeriesConnections Installing yourGeneral precautions UnpackingWhats inside a 518? Planning setupOverview as Preamp Type What else do I need to know? What about analogue sources?CD or LaserDisc playback improvement Overview as Resolution Enhancement Processor TypeMeridian DSP speaker improvement Meridian Surround improvement Overview as Multimedia Processor Type Overview as Mastering Processor Type∙ Normal ∙ Standby ∙ Type ∙ Config Customising featuresStandby Switching onStarting off with Basic operationOut Adjusting the volumeOperating 518 as a Control Unit Type Selecting a sourceShape B DitherFlat Shape aDisplay Advanced operation using the Remote Control Menu Keys Operating 518 as Resolution Enhancer TypeVolume control Muting the soundOperation summary With the Remote ControlMemory Customising 518, an overview Restoring default settingsConfig an overview Config control settingsHow to change to Type or Config How to customiseCustomising, general procedure Config sources and inputsSetting Type Controller Customising using TypeHow to change back to Normal Making changes to an existing setupSelecting Types Customising using ConfigHow to use Config ConfigSetting the Standby mode for Selecting the controller modeSetting the system address for Setting the product address forSetting the Volume display Setting the Blank display option forSetting the Emphasis option for Setting the Volume mode forChoosing source logos Setting up sourcesVol. dB Choosing the Comms type for a source product Changing the input for a sourceChoosing the address of a source product Digital output connection ConnectionsDigital audio connections Digital input connectionsCon Connecting to Meridian Digital speakersCommunications connections To connect to other Meridian 500 Series equipmentMastering Processor PartD1 +2 DescriptionAs a Mastering or Multimedia Processor Type Meridian 500 Comms warningShpB +2 Emph +2Making Recordings Transfer to the final carrier Transfer to editorShaper Advantage 44.1kHz 48kHz Normal Pre-emphasis Noise shaper characteristicsDither Operating BackgroundTransparency in digital systems Digital Audio and QuantisationDynamic Range Noise Shaping with ditherPre and De-emphasis Step up in dynamic range Simple rules for usingStep-down in sample word size No change in sample sizeAdditional technical information SpecificationHelp Maintenance & Service CleaningNoise Part Appendix 1 Noise ShapesAbove noise spectrum for Shape B at 44.1kHz 0Hz 5kHz 10kHz 15kHz 20kHz Requirements for D/A conversion Vulnerability of the signalAudible results of digital errors and editing Appendix 2 Hints on Mastering with noise-shapingAppendix 2 Hints on Mastering Handset Functions Appendix 3 RS232GoTo Functions Jitter and de-jittering Appendix 4 -Resolution EnhancementFrequency Dynamic-rangeDynamic-range optimisation with Pre-emphasis Dynamic-range optimisation with GainShowing CD pre- and de-emphasis curves Dynamic-range optimisation with Noise-shaped Dither DAC or channel enhancement by word-length matching DAC enhancement by using high-frequency ditherIndex ContentsIndex User Guide User Guide