Multi-Sub Optimizer Help Contents

Home Page

• Home Page
  • Introduction
  • Multi-Sub Optimizer Main Window
  • Multiple Subs Before and After Optimization
  • System Hardware Requirements
  • System Software Requirements
  • Important: Measurement System Requirements
  • Download Links
  • Before You Begin
  • Other Recommended Reading
  • Tutorials and Online Discussion
  • License
  • Acknowledgments

Tutorial

• Multi-Sub Optimizer Tutorial
  • Introduction to Multi-Sub Optimizer
  • Running the Tutorial
• About the Tutorial Process
  • The Steps You'll Perform
• Tips For Preparing to Use MSO
  • Choosing File Names for the Exported REW Measurements
  • The REW Export Dialog
  • Using the Channel Labeling Feature of the miniDSP
• Running the Measurement Import Wizard
  • Launch the Measurement Import Wizard
• Running the Configuration Wizard
  • Specifying the Properties of the New Configuration
• Specifying Graph Properties and Optimization Options
  • Modifying the Graph Properties
  • Modifying the Optimization Options
• Running the First Optimization
  • Have We Lost Our Baseline?
  • Comparing Results: Before and After Optimization
• Improving the Optimization Results
  • Cloning to a New Configuration
  • Renaming Graphs to Avoid Confusion
  • Fixing Up the Optimization Options of the Iteration 2 Configuraion
• Making Manual Configuration Changes
  • Relating MSO Configurations to DSP Block Diagrams
  • Applying What We've Learned: Manually Adding Filters to a Configuration
  • Preparing for a New Optimization
• Running a New Optimization
  • Evaluating the Results
• Making a New Configuration with Shared Filters
  • Cloning Iteration 2 to Make Iteration 3
  • Adding Shared Filters
  • Optimizing Iteration 3
  • Using the Configuration Performance Metrics Dialog to Compare Results
• Interpreting Filter Report Data
  • Showing the Filter Report
  • Using the Normalize Gains Command
  • Applying What We've Learned
• Fixing the Sub Gain Mismatch
  • Cloning the Iteration 3 Configuration
  • Normalizing and Constraining the Gains
  • Resetting the Filter Parameter Values of Iteration 4
• Running the Optimization for Iteration 4
  • Checking the Relative Sub Gains
• Getting Filter, Delay and Gain Information From MSO Into the DSP Device
  • Verifying the DSP Hardware Information
  • A Brief Explanation of Biquads
  • Exporting Biquad Text of All Channels at Once
  • Exporting Biquad Text of a Single Channel
  • Importing the Biquad Text Into the miniDSP 2x4 HD
  • Setting the Individual Channel Delays
  • Setting the Sub Gains
  • Wrapping Up
• Summary of Results

Reference Manual

• Multi-Sub Optimizer (MSO) Reference Manual
  • About the MSO Reference Manual
  • The Different Usage Models of MSO: Configurations
  • Overview of the Wizard-Based Process of Using MSO
• Optimization Strategies
  • The Reason for the Different Configuration Types
  • Optimizing Subs Only
  • Optimizing Subs and Mains
  • Using an HTPC With Filters Implemented in Software
• Taking Measurements With Your Measurement Software
  • First Clear Out DSP Filters, Delays, Gains and Polarity Inversions
  • What Measurements Do I Need to Take?
  • Sub-Only Configurations: Set AVR and Subs to Make Sub Bandwidth as Large as Possible
  • Subs+Mains Configurations: AVR Main Speaker and Sub Distances Before Measurement
  • Imported Measurements Must Be Time-Synchronized
  • Room EQ Wizard (REW) Considerations
  • General Considerations
  • HDMI Considerations
  • Uncommon Measurement Setups
• Exporting Measurements From Your Measurement Software
  • Before You Export Text: Guaranteeing That Smoothing Will Be Removed
  • REW's Measurement Export Dialog
  • Keeping Track of Measurements and Filter Channels
• Importing Measurement Text Files
  • Sub and Mains Measurements vs. Plot-Only Measurements
  • Performing the Import
• Creating Configurations Using the Configuration Wizard
  • Configuration Types
  • The Different Methods of Creating Configurations
  • Using the Tutorial Measurement Files as Sample Files to Import
  • Creating Your First Configuration With the Wizards
• Using Configuration Templates
  • How to Access a Configuration Template
  • How to Create a New Configuration From a Configuration Template
• A Preliminary Look at Graphs
  • Modifying the Graph Properties
• Specifying Optimization Options
  • The Method Property Page
  • The Criteria Property Page
  • The Property Pages for Setting PEQ Parameter Limits
  • The Sub General PEQ Limits Property Page
  • The Sub Input PEQ Limits Property Page
  • Considerations When Optimizing Both Subs and Main Speakers
  • The Main Speaker General PEQ Limits Property Page
  • The Main Speaker Shared PEQ Limits Property Page
  • The Target Curve Property Page
  • The Group Weights Property Page
• Running an Optimization
  • Optimizating a Single Configuration
  • Optimizing Multiple Configurations
• Cloning Configurations
  • Cloning a Configuration From The Main Menu
  • Cloning a Configuration From The Config View
  • Cloning Associated Graphs
  • Comparing Results
• Comparing Configuration Performance Using Graphs
  • An Example of Performance Comparison Using Graphs
  • Creating a New Graph Manually
• The Configuration Performance Metrics Dialog
  • The Nature of the Displayed Errors
  • The Controls of the Configuration Performance Metrics Dialog
• Gathering Filter Information: Filter Reports and Biquad Export
  • Specifying Filter Report and Biquad Export Options
  • Listing Filter Information in a Filter Report
  • Using Conventional Biquad Export Support
  • Using BEQ Biquad Export Support
  • After Exporting Biquad Information
  • Saving Configurations in Equalizer APO Format
• Displaying Data With Graphs: The Details
  • Different Methods of Creating Graphs
  • Showing a Graph That's Not Currently Visible
  • The Property Sheets Used for Modifying Existing Graphs
  • Graph and Trace Naming
  • Using the Graph Properties Property Sheet
  • Using the Trace Properties Property Sheet
  • Saving Graphs as PNG Files
• Filter Compatibility With Available Hardware and Software
  • Differences in the Definition of Parametric EQ "Q" Parameter for Different Hardware and Software
  • miniDSP Compatibility and Biquads
  • Behringer iNuke DSP Amplifier and DCX2496 Electronic Crossover Compatibility
  • Equalizer APO Filter Compatibility
• Creating Configurations Manually
  • The First Configuration
  • Creating Subsequent Configurations by Cloning
• Defining Filter Channels
  • Adding Filter Channels
• Adding Filters, Delays and Gains to Filter Channels
  • Adding Multiple Filters Using Copy and Paste
  • Restrictions on Delays and Gains
• Associating Measurements With Filter Channels
  • The Example Project Without Measurement Associations
  • Performing the Measurement Associations on the Example Project
• Making Measurement Groups
  • Adding Measurement Groups
  • Why "Measurement Groups"?
• Changing Filter Parameter Values and Constraints
  • Using the Properties Window
  • Parameter Locking
  • The Different Methods of Specifying Filter Parameter Values and Limits
• Window Navigation
  • Window Navigation Shortcut Keys
  • The Window Menu
  • The Windows Dialog
• The Application Options Property Sheet
  • General Considerations
  • The Hardware, Data and User Interface Property Pages
• The Application Options Property Sheet (continued)
  • The Common Traits of the Filter Parameter Defaults Property Pages
  • The Individual Filter Parameter Defaults Property Pages
• Tips and Tricks
  • Tips for Searching and Viewing the MSO CHM Help File
  • Copying and Pasting Filters
  • The Different Methods of Specifying Filter Parameter Values and Limits
  • Setting Delay and PEQ Parameters: Guidelines and Examples
  • Normalizing and Rearranging Gains and Delays
  • Saving Graph Traces as FRD Files
  • How Many Subs are Needed?
• Multi-Sub Optimizer FAQ
  • Why Doesn't My Final Measured Data Agree With MSO's Predictions?

Tech Topics

• Current Topics

  • How Optimization Errors are Calculated: the Details
  • "Optimizing the Splice" of Subs to Multiple Satellites
    • Theory
    • Using MSO to "Optimize the Splice" of Subs to Multiple Satellites
  • Two-Channel Multi-Sub Setups Using MSO and Equalizer APO
  • Exporting MSO Configurations for Use with JRiver Media Center
  • Working With Dissimilar Subwoofers
  • The History of Multiple-Subwoofer Optimization

• Old Topics

  • Old Tech Topics Home
  • Using MSO to Help Find the Optimum Crossover Frequency
  • The Geddes Approach: No Conventional Crossover
  • Old MSO Tutorial