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MOTU MIDI Express XT User Manual

MOTU MIDI Express XT
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Mark of the Unicorn
,
Inc.
Mark of the Unicorn, Inc.
1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: (617) 576-2760
Business fax: (617) 576-3609
Tech support fax: (617) 354-3068
Tech support email: techsupport@motu.com
Web site: http://www.motu.com
User Guide
MIDI Express XT
MIDI Express 128
micro express
micro lite

Table of Contents

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MOTU MIDI Express XT Specifications

General IconGeneral
Connector 1MIDI

Summary

Electrical Requirements

Electrical Shock and Fire Hazards

Warning to avoid electrical shock and fire hazards when using the MOTU USB MIDI interface.

Battery Replacement Explosion Hazard

Caution regarding the danger of explosion if the battery is replaced improperly.

Software and Hardware Warranties

Software License Agreement

Terms and conditions for using the MOTU software, including usage limitations.

Hardware Limited Warranty

Details the ninety (90) day warranty period for MOTU hardware products against defects.

Packing List and Computer Requirements

Register Your MOTU Interface

Encourages users to register their product for technical support and updates.

Included Product List

Lists the items included in the MOTU USB MIDI Interface package.

Computer System Requirements

Specifies the operating system and hardware requirements for the MOTU interface.

Installing Your MOTU Interface

Connecting the Power Cord

Instructions for connecting the MOTU interface to a power source.

Connecting to the Computer

Guidance on connecting the MOTU interface to the computer via USB.

Connecting MIDI Gear

One-Way MIDI Connections

Explains how to make MIDI connections for devices that send or receive data.

Connecting with MIDI THRU

Instructions for connecting additional MIDI devices using the THRU ports.

MIDI Connections Worksheet

A tool to help users document their MIDI gear connections.

Time Code Sync Connections

Connecting a SMPTE Time Code Source

Guide for connecting external SMPTE time code sources to the interface.

SMPTE Time Code Destination

Instructions for routing SMPTE time code from the interface to other devices.

Connecting a Foot Switch

Connecting an Audio Click Source

How to connect an audio click source to convert it to MIDI tempo.

Connecting Multiple USB Interfaces

Installing the MOTU USB MIDI Software

MOTU USB MIDI Installer Overview

Information about the software installer and its process.

Software Components Installed

Details the drivers and applications installed by the software.

Chaining MIDI Devices

Using MIDI Software

MIDI Inputs and Outputs

Understanding the naming conventions for MIDI ports in software.

The 'Port All' Port

Explanation of the special 'Port All' for MIDI messages.

MIDI Data Path

ClockWorks Software

About ClockWorks

Introduction to the ClockWorks software program for configuring MOTU interfaces.

When to Use ClockWorks

Guidance on when ClockWorks is necessary for customizing interface settings.

ClockWorks Window Overview

Description of the main ClockWorks window interface elements.

Device List Window

Accessing and viewing connected MOTU USB MIDI devices.

Using ClockWorks with Windows

Launching ClockWorks Application

Steps to start the ClockWorks software on a Windows system.

Troubleshooting: Interface Not Appearing

Steps to resolve issues when the MOTU interface is not detected by ClockWorks.

ClockWorks File Menu Options

Explanation of functions available in the ClockWorks File menu.

Device Status and Hardware Interaction

How ClockWorks reflects and interacts with the MOTU interface hardware.

Resetting to Factory Settings

Restoring the MOTU interface to its default factory settings.

Routings Tab Functions

Computer Routing Overview

Explains how computer connections are represented in the Routings tab.

Making a MIDI Connection

Instructions for creating MIDI data routes between devices.

Connecting One Input to Multiple Outputs

Method for routing a single MIDI input to several outputs simultaneously.

MTC In and Out Connections

Details on routing MIDI Time Code (MTC) to and from the interface.

MMC Out and MMC In Ports

Explains the routing of MIDI Machine Control (MMC) commands.

Routing MMC from Computer

How to route MMC commands from the computer to the interface.

Direct vs. Redistributed MMC

Explains the difference between direct and redistributed MMC signals.

Presets Tab Functions

Mutings Tab Functions

Muting Basics Explained

Explains the concept of muting MIDI data types on specific channels.

Muting Data Types

How to mute specific data types on all channels or cables.

Muting MIDI Beat Clocks

Instructions for muting MIDI beat clocks to prevent unwanted transmission.

Channel Remapping Interaction

Explains how muting and remapping interact within the interface.

Mappings Tab Functions

Mapping Basics Explained

Explains the concept of channel mapping for MIDI data.

Using Channel Mapping

Provides use cases and instructions for channel mapping.

Synchronization and MIDI Machine Control

Transport Controls Overview

Description of the transport control buttons for sync and MMC.

Clock Mode Menu Options

Explanation of the different clock modes: Internal, MTC, and LTC.

MMC Rehearse and Record Modes

Details on MMC rehearse and record modes for transport control.

Sync Settings Indicators

External Time Code Detect

Status indicator for detecting incoming external time code.

Framelocked Status

Indicator showing successful lockup to an external time base.

Frame Lock Setting

Option to manage interface behavior during time code discontinuities.

LTC Output Level

Adjusts the gain of the SMPTE time code output.

Still-Frame Sensitivity

Controls sensitivity to frame changes for detecting parked video.

Infinite Freewheel Setting

Enables continuous time code generation when input stops.

Pedal Tab Functions

Pedal Type Menu

Options for configuring the pedal input: None, Momentary, Click to MIDI.

Pedal Polarity

Reverses the direction of pedal input to adjust sensitivity.

Using Audio Click as Tempo Source

How to convert an audio click into MIDI tempo for synchronization.

Threshold and Decay Settings

Adjusting threshold and decay for accurate audio click to MIDI conversion.

MIDI Message and Channel for Pedal

Configuring MIDI message and channel for pedal input assignments.

Sysex Data with a Pedal

Assigning sysex messages to pedal input for custom control.

Front Panel Presets

Factory vs. User Presets

Distinction between pre-programmed factory presets and configurable user presets.

Selecting Presets on Express XT

Procedure for selecting presets from the front panel of the MIDI Express XT.

Selecting Presets on Micro Express

Procedure for selecting presets from the front panel of the micro express.

Factory Preset Descriptions

Detailed descriptions and use cases for each factory preset.

Sequencer 30 fps Preset

Description of the preset optimized for MIDI software at 30 fps.

Sequencer 25 fps Preset

Description of the preset optimized for MIDI software at 25 fps.

Live Keyboards Preset

Preset configuration for routing controller data to MIDI outputs.

Merge All Preset

Preset that routes all incoming MIDI data to all outputs for troubleshooting.

Merge Some Preset

Preset that splits inputs into groups for routing to outputs.

Dual Split Preset

Preset that splits the interface into two sets of inputs and outputs.

MIDI Machine/Express XT Preset

Preset for MIDI, time code, and MMC settings for Express XT.

Direct Preset

Preset that disables processing, acting as a simple MIDI interface.

User Presets Configuration

How to modify and save user presets using ClockWorks or the interface.

Synchronization Basics

What is Synchronization?

Definition and importance of synchronizing multiple audio/MIDI devices.

What is SMPTE?

Explanation of SMPTE time code, its origin, and its standard.

Accessing Sync Settings

How to access synchronization settings via ClockWorks.

Syncing Interface to SMPTE

How the interface locks to incoming SMPTE time code.

Freewheeling to Avoid Time Code Dropouts

Using the freewheel feature to maintain sync during time code interruptions.

Slaving a Sequencer to SMPTE

Steps to slave a sequencer to SMPTE time code using the interface.

MTC Mode Operation

How the interface operates in MIDI Time Code (MTC) sync mode.

Striping SMPTE Time Code

LTC Mode Operation

Details on using LTC mode for SMPTE time code regeneration.

Generating Fresh Time Code (Jam Syncing)

Technique for generating new SMPTE time code while copying tapes.

Generating a SMPTE Track

Instructions for creating a clean SMPTE time code track.

MIDI Machine Control (MMC)

How MMC Works

Explanation of how MMC controllers send commands to devices.

Recommended MMC Setup

Optimal configuration for using MMC with the MOTU interface as a hub.

MMC and Video Synchronization

Requirements for MMC control of video decks via the interface.

MMC Device ID Settings

How to set or change the MMC device ID for the interface.

Preparing Software for MMC

Steps to configure software to slave to MTC generated by the interface.

Using Software as MMC Controller

Setting up computer software to act as the MMC transport master.

Routing Time Code to Other Devices

How to route MTC from the interface to control external devices.

Using an MMC Control Surface

Connecting and configuring external MMC control surfaces like CuePoint.

Using Other Devices as a Controller

Setting up devices that transmit LTC or MTC to act as time code masters.

Glossary

CRT Definition

Explanation of Cathode Ray Tube.

Crosstalk Interference

Interference on a track from an adjacent track on a tape recorder.

Default Configuration

An initial or standard value or configuration setting.

Drop Frame Time Code

SMPTE time code format compensating for color video timing errors.

Guard Track

An empty track adjacent to LTC to prevent crosstalk.

Hard Record Mode

VTR mode that erases and records all tracks simultaneously.

Horizontal Blanking

Period in video display where electron beam retraces.

House Sync

Connecting all video equipment to a single sync generator.

Input Cable

One of the MIDI IN jacks in a MIDI Time Piece network.

Insert Record Mode

VTR mode recording on specific tracks without affecting others.

MTC (MIDI Time Code)

Time code digitized within the MIDI format, expressing hours, minutes, seconds, frames.

Network Connection

Connecting MIDI Time Pieces via their NETWORK serial ports.

Non-drop Frame Time Code

SMPTE time code format that does not skip frames.

NTSC Format

Color information coding system for broadcasting television.

PAL/SECAM Format

System of coding color information similar to NTSC.

Script Definition

An itemized description of commands, often for setups or modifiers.

Sequencer Function

Computer or software capable of recording and playing back audio/MIDI data.

SMPTE Time Code

Society of Motion Picture and Television Engineers timing standard.

Time Code Definition

Series of binary impulses indicating location on film, video, or audio.

Vertical Blanking Area

Area on tape between frames where VITC is recorded.

Video Field Definition

One half of a complete video scanning cycle.

Video Frame Definition

One complete video scanning cycle.

VITC (Vertical Interval Time Code)

SMPTE time code expressed in video form, recorded in vertical blanking.

Tape Recorder Definition

A device capable of recording and playing back video tape.

Appendix B: SMPTE Synchronization Basics

What is Synchronization?

Definition of synchronization as events occurring at the same point in time.

What is SMPTE?

Explanation of SMPTE time code, its origin, and its international standard status.

LTC vs. VITC Comparison

Comparison of Longitudinal Time Code (LTC) and Vertical Interval Time Code (VITC).

LTC Definition

Explanation of Longitudinal Time Code as the audio form of SMPTE time code.

VITC Definition

Explanation of Vertical Interval Time Code encoded in the video signal.

VITC Over LTC Usage

Discussion on the usage advantages of VITC over LTC for synchronization.

Choosing LTC or VITC

Guidance on selecting between LTC and VITC for different applications.

SMPTE Frame Rates

Overview of different SMPTE time code formats based on frames per second.

What is Drop Frame?

Explanation of the Drop Frame SMPTE time code format and its function.

Drop Frame Time Code Explanation

Detailed explanation of how Drop Frame time code accounts for timing differences.

When to Use Drop Frame

Guidance on when Drop Frame time code is necessary versus non-drop.

How SMPTE Synchronization Works

Explanation of the process of synchronizing devices using SMPTE time code.

What is MIDI Time Code?

Explanation of MIDI Time Code format and its use in synchronization.

Syncing MOTU Interface to SMPTE

Steps required to synchronize the MOTU interface to SMPTE time code.

Appendix C: Troubleshooting and Customer Support

Common Problems and Solutions

General advice and common issues encountered with the interface.

MOTU Interface Not Syncing to SMPTE

Troubleshooting steps for issues related to SMPTE synchronization.

Troubleshooting General Advice

Tips for effective troubleshooting, including documenting problems.

Technical Support Information

Contact details and required information for technical support.

Software CD Issues

Information on obtaining replacement software CDs or downloads.

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