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Meridian Configuration Program Configuration

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Meridian Configuration Program Guide
Configuration Guide.indb i
Configuration Guide.indb i
12/11/04 3:34:31 pm
12/11/04 3:34:31 pm

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  • Page 1 Meridian Configuration Program Guide Configuration Guide.indb i Configuration Guide.indb i 12/11/04 3:34:31 pm 12/11/04 3:34:31 pm...
  • Page 2 Boothroyd|Stuart Meridian, Meridian, Meridian Digital Theatre, Meridian Lossless Packing, MHR, MHR Smart Link, the MHR logo, and MLP are registered trademarks of Meridian Audio Ltd. Microsoft, MS-DOS, Windows, Windows NT, and the Windows logo are either registered trademarks or trademarks of Microsoft Corporation.

  • Page 3: Table Of Contents

    Explains how to run the Meridian Room Correction program and gives a general overview of its key features. and create profi les for use with a digital surround controller. Overview Introduction Installing the Meridian Configuration Program Auto Build Viewing and repeating measurements Quick tour Viewing profiles Describes how to create a complete confi...
  • Page 4 C o n t e n t s Configuration Guide.indb iv Configuration Guide.indb iv 12/11/04 3:34:33 pm 12/11/04 3:34:33 pm...

  • Page 5: Getting Started

    G e t t i n g s t a r t e d Getting started This chapter explains how to install the Meridian Configuration Program, and gives a general overview of its key features. Overview single configuration file representing the settings of each product in your system and the way they are interconnected.
  • Page 6 Benefits of using the Meridian Meridian Control Window Configuration Program The Meridian Configuration Program is supplied with the Meridian Control Window utility, a separate PC application that allows you Configuring your system with the Meridian Configuration Program to control any Meridian product via a serial cable (or USB cable offers several important benefits.
  • Page 7 G e t t i n g s t a r t e d The Products page The following illustration shows the key features of the Products page, which lets you specify how your system is interconnected: Toolbar Breadcrumb Trail Information Bar Tabs to add new products Resource Bar...

  • Page 8: Installing The Meridian Configuration Program

    G e t t i n g s t a r t e d Requirements On the Preferences page: To use the Meridian Configuration Program you need: • Leave Install for all users selected, unless you want to restrict use of the program to yourself on a multi-user machine.

  • Page 9: Quick Tour

    Even if this does not correspond to your own system we recommend you follow the tutorial to give you a quick tour of the Meridian Configuration Program. At each stage the Quick tour shows information in grey tinted boxes about the more advanced features of the program, and the additional options for configuring 800 Series products.

  • Page 10: Getting Help

    Getting help For more detailed information about the Meridian Configuration Program see the on-line help. To display the help: • On the Help menu, click Configuration Program Help . Configuration Guide.indb 6 Configuration Guide.indb 6 12/11/04 3:34:40 pm...

  • Page 11: Products: Adding A Controller

    Products: Adding a controller Q u i c k t o u r The controller is defined as the product that selects sources and The Products page will then show a block representing the controls the volume for the system; it is the digital surround G68ADV Digital Surround Controller: controller, preamplifier, or combination product.
  • Page 12 Meridian Configuration Program to fetch the configuration from the product, rather than starting from a default configuration as described above. This is also useful if you cannot locate the file on the computer.
  • Page 13 Q u i c k t o u r Changing the value of a property Configuring 800 Series products • Click the value of the property. Adding an 800 Series controller • Choose an option from the drop-down list: If you are adding an 800 Series controller a dialogue box will allow you to specify one of the product’s standard card configurations.
  • Page 14 Q u i c k t o u r The following dialogue box allows you to specify the card type and, Initially this shows a graphic of the card positions: when appropriate, the position of the jumper identifying the card: Removing a card •...

  • Page 15: Products: Inserting A Source

    Q u i c k t o u r The next step is to add the sources in your system. For this Quick The Meridian Configuration Program will use a set of connections tour we will assume a satellite receiver is required.
  • Page 16 Q u i c k t o u r Advanced tips Renaming a source You can give each source a name of up to five characters to Showing a list of the recommended connections identify it on the front-panel display: •...
  • Page 17 Q u i c k t o u r • Choose the MSR+ key from the MSR+ key drop-down list: • Drag between the output on the source and the input on the controller that you want to connect: When you release the mouse button the cable will be connected: Showing and hiding connections You can choose whether or not source connections are displayed If the connectors are incompatible a stop cursor will be displayed:...
  • Page 18 G98DH DVD Player, to a digital surround controller with or remove inputs or outputs, to reflect the connectors provided by multichannel inputs, the Meridian Configuration Program can your source. For example, if your satellite receiver includes a digital...

  • Page 19: Products: Adding Speakers

    • Click the OK button to add the speakers. The Meridian Configuration Program will automatically prompt you to add an amplifier to the layout to drive the passive speakers: Configuration Guide.indb 15 Configuration Guide.indb 15...
  • Page 20 Q u i c k t o u r • Click the Yes button. Finally insert a subwoofer into the layout: • Click G57 on the Amplifier type drop-down list, and click the • Click the insert a speaker link in the Information Bar and select OK button to add the amplifier: Subwoofer from the Type drop-down list: The G57 will automatically be connected up to the appropriate...
  • Page 21 Q u i c k t o u r Advanced tips The Speaker connections and Controller connections pages will appear in the Breadcrumb Trail after the Soft keys page: Adding a speaker by dragging it from the Resource Bar • Drag an icon from the Speakers tab of the Resource Bar (to the left of the Products page): Displaying or changing the speaker properties •...

  • Page 22: Soft Keys

    Soft keys Q u i c k t o u r The Soft keys page allows you to customise the soft keys for each of the G Series products in the system, starting with the controller. In this example the only applicable product is the G68ADV. An initial recommended layout is provided for each product;...
  • Page 23 Q u i c k t o u r Advanced tips Renaming a source • Right-click a soft key corresponding to a source, then click Changing the soft key layout Rename Source… on the context menu: • Drag a soft key, or pair of keys, from the left-hand pane onto the set of soft keys you want to edit: All occurrences of the source in the soft key sets will be changed.

  • Page 24: Bass Management

    Bass management Q u i c k t o u r The Bass management page specifies how bass is handled in • Click the Next link in the Breadcrumb Trail to proceed to the the system for each of the three speaker layouts. The settings are next page.
  • Page 25 Q u i c k t o u r If there is one subwoofer in the layout, and you have specified the The LFE low pass filter option sets the low-pass filter for the LFE front speakers as Small , the subwoofer will be used for the bass channel, for the Music and 5.1 Movie speaker layouts.

  • Page 26: Speaker Distances

    Speaker distances Q u i c k t o u r The Speaker distances page gathers information about the relative positions of the full-range speakers in your system, and the distance of each speaker from the listening position. First choose the units you would like to work in.

  • Page 27: Speaker Calibration

    You can use the Meridian Configuration Program to step between calibration sequence so you can tune your speakers by ear using a...
  • Page 28 Q u i c k t o u r Advanced tips Specifying the serial port • Click the Options… button on the Pre-calibration store page to display the Comms Port tab on the Options dialogue box: • Select the port you want to use from the drop-down list and click the OK button.

  • Page 29: Room Correction

    Room correction Q u i c k t o u r The Room correction page runs the Meridian Room Correction procedure. This is optional and you can skip this stage by clicking the Next link in the Breadcrumb Trail: For information about running the Room Correction procedure see the chapter Room Correction , page 3 1.

  • Page 30: Dsp Presets

    DSP presets Q u i c k t o u r The DSP presets page shows a list of the DSP presets available to For a simple configuration you can skip this page. the digital surround controller, and allows you to edit the properties of each preset.
  • Page 31 Q u i c k t o u r Changing the preset mapping The Preset Mapping pane shows the default DSP preset selected for each source and each audio format. • Click the preset in the appropriate audio format column and select the preset you want to use for the default from the drop- down list: Configuration Guide.indb 27...

  • Page 32: Tuner Presets

    Tuner presets Q u i c k t o u r For each product in your system that includes a radio tuner, a Tuner presets page allows you to define the legend displayed on the front panel display for each tuner preset, and the waveband, frequency, and audio mode it selects: •...

  • Page 33: Store Settings

    Store settings Q u i c k t o u r This page stores the settings to the controller: • Connect the serial cable. For more information see To connect the serial cable , page 23. • Click the Start button to store the settings. When the store has completed: •...

  • Page 34: Finish

    Finish Q u i c k t o u r The Finish page confirms that you have successfully completed the configuration of your system. Save a copy of your configuration Although a copy of the configuration document is saved in the controller for your system, it is recommended that you also save a copy of the final configuration document on your PC, with an appropriate name, so that you can refer to it again at a later date,...

  • Page 35: Room Correction

    R o o m c o r r e c t i o n Room Correction The G68 and 861 digital surround controllers incorporate room correction, which takes advantage of advanced digital signal processing techniques to compensate for room artefacts, including resonances and reflections, to give a significant improvement in the sound.
  • Page 36 R o o m c o r r e c t i o n a test signal is presented to each loudspeaker and measured at the Unless your listening room has been specially designed for acoustic microphone to determine how the room response affects the sound performance, you will almost certainly hear distinct benefits after from each speaker.

  • Page 37: Auto Build

    Room correction page in the sequence of Meridian Configuration Program pages. If you decided not to create room correction profiles when you first configured the system, start from the saved configuration...
  • Page 38 R o o m c o r r e c t i o n • If you are using a G68 Digital Surround Controller connect the The Room correction page shows information about each test SPL meter or microphone to the analogue input A8 (L). and a progress bar indicates the percentage completed: •...

  • Page 39: What Next

    R o o m c o r r e c t i o n Each preset will be assigned the profile designed for the layout used with the preset. The wizard creates profiles called Mus, Log, and Mov for the Music, Logic, and 5.1 Movie speaker layouts respectively.

  • Page 40: Viewing And Repeating Measurements

    R o o m Viewing and repeating measurements c o r r e c t i o n The Measurements tab shows a list of the measurement sets you have created. Each measurement set shows the channels measured for each of the speaker layouts set up in the digital surround controller configuration: You can also create additional measurement sets;...
  • Page 41 R o o m c o r r e c t i o n You can then set different Profile settings for each plot: Shows the response of the room to a series of short sine wave pulses of frequencies between 0 and 250Hz. It shows how the response decays over time at each of those frequencies.
  • Page 42 R o o m c o r r e c t i o n Low frequency response In the Waterfall Plot the values displayed correspond to Time = 0. To change the axes • Click the Axes… button to display the axis parameters. The Data Range section on each tab shows the range of the data measured by the Room Correction procedure.
  • Page 43 R o o m c o r r e c t i o n The following dialogue box allows you to select which channels To create multiple measurements you want to repeat: You can create additional measurement sets to take account of different configurations of the room, such as with curtains open or closed.

  • Page 44: Viewing Profiles

    R o o m Viewing profiles c o r r e c t i o n The Profiles tab shows a list of the profiles that have been • Click the OK button to continue. calculated, together with the number of filters used for each profile and the number of remaining filters available: If you have more than one measurement set the following dialogue box is displayed to allow you to select which measurement set you...

  • Page 45: Editing Filters

    R o o m Editing filters c o r r e c t i o n After building the filters for a profile you can edit the filters The columns give the Centre Frequency (Hz), Gain (dB), Filter numerically or graphically to adjust their parameters, or change the Bandwidth (Hz), Room Mode Bandwidth (Hz), Equalized Bandwidth response of each filter.
  • Page 46 R o o m c o r r e c t i o n To view the filters graphically The currently selected filter is displayed with a red vertical bar • Select Graphical : at the filter centre frequency, and a rectangle indicating the bandwidth and gain of the filter.
  • Page 47 R o o m c o r r e c t i o n Bandwidth • Drag one of the sides of the filter, or press c< or c>: To add a filter • Click the Add button on the Numeric or Graphical tab: •...

  • Page 48: Changing Settings At A Later Date

    • Change the settings as required and store the new settings to To edit an existing profile, or add a new profile the digital surround controller. • Run the Meridian Configuration Program and open the MSL file used to create the original profiles. For more information about changing configuration settings using...
  • Page 49 After making changes on the digital surround controller you can add these changes to an existing MSL file as follows: • Run the Meridian Configuration Program and open the original MSL file. • On the Products page, right-click the controller, then click Fetch…...

  • Page 50: Troubleshooting

    R o o m Troubleshooting c o r r e c t i o n This section gives suggested solutions to typical problems that • Check that the SPL meter is switched on and set to the 90dB may occur when using Meridian Room Correction. If problems band, or the band which includes 90dB, and with C weighting.
  • Page 51 R o o m c o r r e c t i o n Repeated measurements due to poor SNR SPL meter is set on a low band Measurements are retried until the SNR is acceptable or the The following graph shows an impulse response obtained when a maximum number of retries has been completed.
  • Page 52 R o o m c o r r e c t i o n Loudspeaker is running in a non-linear range Hum in the system The effects of a loudspeaker running in a non-linear range is most The effect of hum on the measurement is most easily observed in easily observed in the impulse response.

  • Page 53: Control Window

    C o n t r o l W i n d o w Control Window The Meridian Control Window emulates an MSR+ to allow you to control a Meridian product from a PC via a serial or USB cable. Running the Meridian Control The Meridian Control Window will be displayed: Window •...

  • Page 54: Emulating An Msr+ Or Msr

    C o n t r o l Emulating an MSR+ or MSR W i n d o w To send a command to the product A tooltip shows the description of the key followed by the key’s • Click the corresponding button on the Control Window. command: The bar above the buttons shows the response from the product, corresponding to the front panel display.

  • Page 55: Using The Command Tab

    C o n t r o l Using the Command tab W i n d o w The Command tab lists all the available commands under four • Enter the argument from the keyboard: headings: Source , General , Function + MSR keys , and Preset : •...
  • Page 56 C o n t r o l W i n d o w Configuration Guide.indb 52 Configuration Guide.indb 52 12/11/04 3:35:58 pm 12/11/04 3:35:58 pm...

  • Page 57: Index

    Index I n d e x Auto Build room correction 33 fetching settings from a product 8 filters, editing 41 Bass management page 20 Breadcrumb trail 5 help, on-line 6 calibration, speaker 23 impulse response 37 cards, 800 series Information bar 5 adding 9 inputs, adding or removing 14 displaying properties 10...
  • Page 58 I n d e x sources adding 11 printing connections 17 adding inputs or outputs 14 products, displaying properties 8 changing MSR+ key 12 Products page 3, 6 printing connections 17 properties, displaying or changing 8 properties 8 renaming 12 reviewing connections 17 quick tour 5 removing inputs or outputs 14...

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