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MOTU 1248 User Manual

MOTU 1248
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1248
User Guide
1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: (617) 576-2760
Business fax: (617) 576-3609
Web site: www.motu.com
Tech support: www.motu.com/support
8M
16A
MOTU AVB Switch
Title Page

Table of Contents

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MOTU 1248 Specifications

General IconGeneral
Word Clock I/OYes
TypeAudio Interface
A/D Resolution24-bit
Analog Outputs12
Computer ConnectivityUSB, Thunderbolt
Phantom PowerYes
Form FactorRackmount
Rack Spaces1U
Total Input Channels32
Total Output Channels34
DSP MixingYes
SoftwareCueMix FX
Mic Inputs4
Line Inputs8
Line Outputs12
ADAT Optical I/O2 in/2 out
S/PDIF I/O1
USB1 x USB 2.0
Thunderbolt2 x Thunderbolt 2
MIDI I/O1 in/1 out
Sample Rate192 kHz
Headphones2
Audio Interface TypeThunderbolt/USB Audio Interface

Summary

Safety Precautions and Electrical Requirements

Quick Start Guide

Download and Connect Hardware

Steps for downloading the installer and connecting the MOTU interface.

Launch Control Web App and Select Preset

Accessing the web app and choosing initial settings.

MOTU Pro Audio Control Web App

Web App Overview and Access Methods

Introduction to the web app and methods for launching it.

Device Tab Functionality

Device Configuration and Settings

Settings for sample rate, clock mode, and interface identification.

Device Tab Configuration

Routing Tab Functionality

Routing Grid Interface and Controls

Explanation of the routing grid, presets, and lock function.

Mapping Audio Connections

Routing physical and computer audio to various destinations.

Routing Setup Configuration

Computer and AVB Stream Channel Setup

Specifying computer channels and AVB stream counts.

Mixing Tab Functionality

Mixer Overview and Channel Strips

Explanation of the mixer layout, busses, and channel controls.

Bus Controls and Send Faders

Managing bus faders, sends, and master controls.

Mixer Input Channel Strip Details

Input Channel Controls and Settings

Managing channel names, sources, and basic settings.

Mixer Effects Modules Explained

Details on Gate, EQ, and Compressor effects.

Main Mix and Monitor Bus Strips

Main Mix Bus Controls and EQ

Settings for the main stereo mix, including EQ and Leveler.

Monitor Bus Configuration and Solo Mode

Managing the monitor bus, including solo functions and source selection.

Touch Console Operation

Touch Console Interface Overview

Explanation of the multi-touch interface and sidebar.

Channel Strip Controls and Navigation

Using faders, mute, solo, and navigating channels.

Touch Console Channel Settings

Channel Tab and Basic Settings

Accessing channel parameters, settings, and EQ/Dynamics tabs.

Touch Console Channel Strip Controls

Channel Strip Components Overview

Overview of channel settings, EQ, dynamics, and reverb modules.

Faders, Meters, and Mute/Solo Controls

Controlling channel levels, monitoring signals, and muting.

About Your MOTU AVB Audio Interface

Interface Overview and Key Features

General introduction to MOTU AVB interfaces and their capabilities.

MOTU AVB Interface Features

DSP Mixer and Effects Capabilities

Details on the DSP engine, mixing, and effects processing.

AVB Networking and Matrix Routing

Information on AVB system expansion and flexible audio routing.

Web App Control and Network Audio

Controlling the interface via web app and network audio streams.

Software Installation Guide

USB 2.0 Class-Compliant Operation

Using the interface without drivers on Mac OS X.

Software Installation Requirements

Conditions requiring software installation and installer download.

Software Installation Details

Low Latency I/O Performance

Achieving low latency with Thunderbolt and USB drivers.

Windows Audio Driver Configuration

Installing and configuring ASIO and WDM drivers on Windows.

Software Installation and Configuration

Hardware Installation Guide

USB Audio Interface Connection

Steps for connecting the interface as a USB audio device.

AVB Ethernet Audio Interface Setup

Connecting the interface using AVB Ethernet for audio I/O.

Connecting Three to Five Interfaces

Setting up a network with multiple interfaces using a MOTU AVB Switch.

Multi-Switch Network Configuration

Connecting more than five interfaces using multiple AVB switches.

Multiple Thunderbolt and USB Connections

Connecting multiple interfaces directly via Thunderbolt and USB.

Web App Control Setup

Configuring the interface for control via the web app.

Web App Control via Ethernet and WiFi

Connecting for web app control using Ethernet cables, hubs, or WiFi.

AVB Ethernet Interface Requirements

Necessary conditions for operating as an AVB Ethernet audio interface.

AVB Configuration and Sample Rate

Selecting AVB configurations and setting the sample rate.

Thunderbolt Audio Interface Setup

Connecting the interface to a computer via Thunderbolt.

Setting Up Two Interfaces

Connecting multiple MOTU interfaces to a computer.

Web App Control Connection Methods

Methods for connecting the web app via USB, Thunderbolt, or Ethernet.

Connecting to Mac via Ethernet

Steps for establishing an Ethernet connection to a Mac.

Routing Computer and Mac Audio Streams

Mapping audio streams between computer and interface.

USB and AVB Ethernet Interface Setup

Connecting the interface via USB or AVB Ethernet.

Audio Connections Guide

Mic Input Details and Phantom Power

Connecting microphones, phantom power, and preamp gain.

Analog Input/Output and Trim Details

Information on TRS connectors, main/monitor outs, and analog trims.

Guitar and Combo Input Details

Using guitar inputs and combo jacks for mics/instruments.

Synchronization Guide

When Synchronization is Needed

Identifying scenarios requiring clock synchronization.

S/PDIF Device Synchronization

Syncing devices using S/PDIF connections and sample rate conversion.

Word Clock Device Synchronization

Synchronizing devices using word clock connectors.

LTC Setup and Jam Sync Configuration

Configuring LTC input, format, and enabling jam sync.

Resolving Master Clock to External Source

Syncing the network master clock to word clock or optical.

Selecting a Digital Clock Master

Importance of choosing a master clock for digital audio devices.

Optical Device Synchronization Methods

Ways to synchronize optical devices via clock source or word clock.

SMPTE Time Code (LTC) Synchronization

Setting up synchronization using SMPTE time code.

AVB Network Synchronization and Master Clock

Synchronizing AVB networks and selecting a master clock.

Syncing AVB Interfaces with Mac

Options for clocking multiple AVB interfaces connected to a Mac.

Presets Guide

Preset Menu and Overview

Explanation of the preset menu and its purpose.

Stand-Alone Mixer Preset

Using the interface as a mixer without a computer.

Live Recording with Monitor Mixing Preset

Preset for tracking with low-latency monitoring.

Preset Use Cases and Applications

Common presets for different interface modes and tasks.

Interface + Mixer Preset

Using the interface as both an audio interface and mixer simultaneously.

Stage I/O and Input Expander Presets

Using presets for remote audio routing and adding inputs.

Working with Host Audio Software

Host Software Integration Overview

Overview of using MOTU interfaces with various DAWs.

Selecting the MOTU Pro Audio Driver

Choosing the correct driver for Mac OS X and Windows audio software.

Direct Hardware Monitoring Options

Using the MOTU mixer for zero-latency monitoring.

Routing Grid for Audio Routing

Overview of the routing grid for controlling audio flow.

On-Board Mixing and Effects Integration

Using the interface's mixer and effects with host software.

Preparation and Web App Configuration

Steps before running host software, including web app setup.

Monitoring Through Host Software

Processing live input using host software plug-ins.

Windows Buffer Size and Latency

Adjusting buffer size on Windows via the web app.

Computer Channel and Bank Configuration

Specifying computer channels and enabling/disabling banks.

Streaming Audio to Mixer and Computer

Routing audio between the mixer, computer, and AVB network.

Synchronization with Host Software

Syncing the interface and host software for stable operation.

Sample Rate and Clock Mode Settings

Configuring sample rate and clock mode for system sync.

Reducing Monitoring Latency Techniques

Techniques for minimizing latency during live monitoring.

Adjusting Host Software Audio Buffer

Optimizing buffer size to reduce latency in host applications.

Mixer Effects Guide

Mixer Effects Overview and Features

Introduction to DSP mixer effects, including EQ, dynamics, and reverb.

Gate Module Functionality

How the gate effect works, including threshold and timing controls.

MOTU Audio Tools Guide

Networking Guide

Troubleshooting Guide

Updating Firmware Guide

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