User Manual
Table Of Contents
- Title Page
- Quick Start Guide
- 1248 Front Panel
- 1248 Rear Panel
- 8M Front Panel
- 8M Rear Panel
- 16A Rear Panel
- 16A Front Panel
- MOTU AVB Switch
- MOTU AVB Control Web App
- Overview
- It’s not on your hard drive
- Use your favorite web browser
- Control from multiple devices
- Run the installer, get the app
- Make hardware and network connections
- Launching the web app
- Device tab
- Device tab (continued)
- Routing tab
- Mixing tab
- Aux Mixing tab
- Mixer input channel strips
- Main Mix and Monitor channel strips
- Aux bus channel strips
- Group and Reverb channel strips
- 1 About Your MOTU AVB Audio Interface
- State-of-the-art A/D and D/A conversion
- Complementary I/O configurations
- 1248
- 8M
- 16A
- Network I/O
- Universal connectivity
- On-board DSP with mixing and effects
- 32-bit floating point processing
- Modeled vintage effects processing
- AVB system expansion and audio networking
- Matrix routing and multing
- 256 channels of network audio I/O for your host computer
- Web app control
- Stand-alone mixing with wireless control
- ADAT digital I/O
- S/PDIF digital I/O with SRC
- Word clock
- Comprehensive metering
- Headphone outputs
- Precision Digital Trim™
- Rack mount or desktop operation
- AudioDesk
- 2 Packing List and System Requirements
- 3 Software Installation
- 4 Hardware Installation
- Overview
- Rack installation and heat
- Thunderbolt audio interface setup
- USB audio interface setup
- Setup for two interfaces
- Setup for three to five interfaces
- Setup for a multi-switch network
- Setup for multiple Thunderbolt and USB interfaces
- Setup for web app control
- Audio connections
- A typical 1248 setup
- A typical 8M setup
- A typical 16A setup
- Synchronization
- Syncing S/PDIF devices
- Syncing word clock devices
- Syncing an AVB network
- 5 Presets
- 6 The Front Panel LCD
- 7 Working with Host Audio Software
- Overview
- Preparation
- Run the web app
- Sample rate
- Clock Mode
- Enabling and disabling input/output banks
- Specifying the number of computer channels
- Making inputs and outputs available to your host software
- Configuration presets
- Naming computer input and output channels
- Streaming computer audio to and from the onboard mixer
- Working with AVB network streams
- Mirroring computer channels to multiple outputs
- Combining multiple inputs to one output
- Routing grid tutorials
- Choosing the MOTU Audio driver
- Reducing monitoring latency
- Working with on-board mixing and effects
- Synchronization
- 8 Mixer Effects
- 9 Networking
- A Troubleshooting
- B Audio Specifications
- C Mixer Schematics
- D Updating Firmware
- E OSC Support
- Index
ABOUT YOUR MOTU AVB AUDIO INTERFACE
29
WiFi network. Multiple devices can be used simul-
taneously to access any audio interface settings on
the network.
Stand-alone mixing with wireless control
If you connect your MOTU interface to an Apple
Airport or other WiFi router with a standard
Ethernet cable, you can control its powerful mixing
and DSP effects from your smart phone or tablet,
without a computer — great for live sound mixing
from your iPad, tablet, or other wireless device.
ADAT digital I/O
The 1248, 8M and 16A interfaces each provide two
8-channel banks of optical digital I/O. Connect
outboard digital processors, digital mixers or other
gear: 16 channels at 44.1/48 kHz or 8 channels at
88.2/96 kHz.
S/PDIF digital I/O with SRC
The 1248 provides S/PDIF digital input and output
on standard RCA “coax” connectors. The input is
equipped with Sample Rate Conversion (SRC),
allowing you to input a digital signal running at a
different sample rate than the 1248. See “S/PDIF
with sample rate conversion” on page 43.
Word clock
Each MOTU interface supports standard word
clock synchronization at any supported sample
rate. When the interface is operating at 96 kHz, it
can generate word clock output at either 96 or
48 kHz; the 1x equivalence is available as an option
for word clock output when running at high
sample rates (from 88.2 to 192 kHz). The word
clock OUT port can alternately be used as a THRU
port for word clock daisy-chaining. To configure,
use the LCD menu to navigate to Settings -> Word
Clock Thru Mode.
Comprehensive metering
The large backlit LCD displays all signal activity at
a glance with detailed metering for all analog and
digital I/O. You can access many hardware settings
directly from the front panel.
Headphone outputs
The 1248 front panel provides two independent
headphone jacks with separate volume controls.
You can program the outputs to mirror another set
of 1248 outputs or act as their own independent
outputs. The 8M also offers a single headphone
output.
Precision Digital Trim™
On each interface, all of the analog inputs are
equipped with digitally controlled analog trims,
adjustable in 1 dB increments. The input trims for
mic inputs and guitar inputs can be adjusted from
the knobs on the front panel. You can save your
trim configurations as a preset for instant recall.
Rack mount or desktop operation
Each interface is housed in a sturdy, metal-alloy,
19-inch, rack-mountable unit. The rack mounting
brackets can be removed using a 7/64” hex wrench
for desktop operation.
AudioDesk
AudioDesk is a full-featured, audio workstation
software package included with the 1248, 8M, and
16A. AudioDesk provides multi-channel waveform
editing, automated virtual mixing, graphic editing
of ramp automation, real-time effects plug-ins with
crossfades, support for many third-party audio
plug-ins, sample-accurate editing and placement
of audio, and more.