User Manual
Table Of Contents
- Title Page
- Quick Start Guide
- LP32 Front Panel
- LP32 Rear Panel
- MOTU Pro Audio 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)
- 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 the LP32
- Comprehensive I/O
- Flexible optical I/O
- Network I/O
- Other MOTU AVB interfaces
- Universal computer connectivity
- On-board DSP with mixing and effects
- 32-bit floating point processing
- Modeled vintage effects processing
- AVB/TSN system expansion and audio networking
- Matrix routing and multing
- Web app control
- Stand-alone mixing with wireless control
- Comprehensive metering
- Headphone output
- Rack mount or desktop operation
- Audio analysis tools
- AudioDesk
- 2 Packing List and System Requirements
- 3 Software Installation
- 4 Hardware Installation
- Overview
- USB or iOS audio interface setup
- AVB Ethernet audio interface setup
- Setup for two interfaces
- Setup for three to five interfaces
- Setup for a multi-switch network
- Setup for multiple interfaces
- Setup for web app control
- Setup for AVB Ethernet audio interface operation
- Audio connections
- Synchronization
- Syncing optical devices
- Syncing word clock devices
- Syncing an AVB network
- Syncing multiple AVB audio interfaces connected to a Mac
- 5 Presets
- 6 The Front Panel LCD
- 7 Working with Host Audio Software
- Overview
- Preparation
- Run the web app
- Choose the MOTU Pro Audio driver
- Reducing monitoring latency
- Monitoring through the LP32
- Direct hardware playthrough / Direct ASIO monitoring
- Monitoring through your host audio software
- Adjusting your host software audio buffer
- Adjusting buffer size on Mac OS X
- Adjusting buffer size on Windows
- Lower latency versus higher CPU overhead
- Transport responsiveness
- Effects processing and automated mixing
- Working with the Routing grid
- 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 sources to one output
- Routing grid tutorials
- Working with on-board mixing and effects
- 8 Mixer Effects
- 9 MOTU Audio Tools
- 10 Networking
- A Troubleshooting
- B Audio Specifications
- C Mixer Schematics
- D Updating Firmware
- E OSC Support
- Index
NETWORKING
88
■ Long cable runs — a single AVB network
connection can run up to 100 meters with a
standard copper wire CAT-5e or CAT-6 cable.
Fiber-optic cable runs can be much longer. With
multiple switches, you can create a network that
covers very large distances, if necessary. You can
use up to seven “hops” (switch-to-switch
connections).
■ AVB is already shipping on current Macs —
Apple supports AVB on all current shipping Macs,
and the LP32 can operate as a standard AVB audio
interface when connected to your Mac’s AVB-
equipped Ethernet port.
MOTU’S AVB IMPLEMENTATION
MOTU engineering has faithfully implemented the
IEEE 802.1 AVB standard for the MOTU AVB
products. This means that MOTU devices are fully
interoperable with any 3rd party AVB-compatible
device. In addition, MOTU has fine-tuned AVB
operation among MOTU AVB devices for
optimum performance, within the AVB specifi-
cation. Here is a brief summary of advantages you
will enjoy when using MOTU AVB devices
together in a network:
■ Up to 256 channels of host I/O — MOTU AVB
interfaces (depending on the model) can support
up to 256 simultaneous channels of audio I/O (128
in, 128 out) to and from the entire network
through Thunderbolt or USB 3.0.
■ Support for multiple computer hosts — All
computers and all network devices run in sync
with each other, resolved to the network’s master
clock.
■ Gigabit Ethernet — The MOTU AVB Switch
delivers 1 Gbit Ethernet performance, which
provides substantially higher bandwidth than
100 Mbit Ethernet. This allows you to have many
more devices on the AVB network.
■ Over 500 channels of network audio — MOTU’s
AVB network can stream over 500 channels of
audio throughout the network. Depending on the
model, some MOTU AVB devices can broadcast
sixteen 8-channel network streams and simulta-
neously listen to sixteen 8-channel network
streams.
■ Exceptionally low network latency — Standard
AVB network latency is 2 ms. MOTU AVB network
latency is an astonishing 0.6 ms, even over seven
“hops” (switches) and hundreds of meters of cable.
By comparison, other commercially available,
proprietary audio network protocols have variable
(unpredictable) network latency in the range of
2-5 ms.
■ Star configuration — MOTU AVB supports a
star network configuration, which is much more
flexible than daisy-chain scenarios, which depends
on all devices in the chain.
■ Web interface — MOTU AVB devices can be
controlled from the MOTU Pro Audio Control web
app, which runs within any web browser on any
networked laptop, tablet, or smart phone.
Although the web app shares the network with
AVB, AVB audio streams are never compromised
because AVB streams over the network traffic.
■ Bridging to standard Ethernet — the MOTU
AVB Switch provides an extra standard Ethernet
port for bridging to your local Ethernet network,
Wi-Fi, etc. for command and control, internet
access, and other standard network traffic. All
ports allow connection to standard (non-AVB)
network devices, however, the “Ethernet” port is
suggested because it does not support AVB.
NETWORKING EXAMPLES
Networking comes into play as soon as you hook
up a second MOTU interface to your first one, as
explained in “Setup for two interfaces” on page 34,
to add more I/O to your studio. Here are just a few
examples of what is possible.