Yamaha montage6 Owner's Manual page 60

Using a Connected Computer
Precautions when using the [USB TO HOST]
terminal
When connecting the computer to the [USB TO HOST]
terminal, make sure to observe the following points. Failing
to do so risks freezing the computer and corrupting or
losing the data.
If the computer or the instrument freezes, restart the
application software or the computer OS, or turn the power
to the instrument off then on again.
NOTICE
• Use an AB type USB cable.
• Before connecting the computer to the [USB TO HOST]
terminal, exit from any power-saving mode of the com-
puter (such as suspend, sleep, standby).
• Before turning on the power to the instrument, connect
the computer to the [USB TO HOST] terminal.
• Execute the following before turning the power to the
instrument on/off or plugging/unplugging the USB cable
to/from the [USB TO HOST] terminal.
- Quit any open application software on the computer.
- Make sure that data is not being transmitted from the
instrument. (Data is transmitted only by playing notes
on the keyboard or playing back a song.)
• While the computer is connected to the instrument, you
should wait for six seconds or more between these oper-
ations: (1) when turning the power of the instrument off
then on again, or (2) when alternately connecting/dis-
connecting the USB cable.
MIDI channels and MIDI ports
MIDI data is assigned to one of sixteen channels, and this
synthesizer is capable of simultaneously playing sixteen
separate Parts, via the sixteen MIDI channels. However,
the sixteen-channel limit can be overcome by using
separate MIDI "ports," each supporting sixteen channels.
While a single MIDI cable is equipped to handle data over
up to sixteen channels simultaneously, a USB connection
is capable of handling far more—thanks to the use of MIDI
ports. Each MIDI port can handle sixteen channels, and
the USB connection allows up to eight ports, letting you
use up to 128 channels (8 ports x 16 channels) on your
computer.
When connecting this instrument to a computer using a
USB cable, the MIDI ports are defined as follows:
Port 1
The tone generator block in this instrument can recognize
and use only this port. When playing the MONTAGE as a
tone generator from the external MIDI instrument or
computer, you should set the MIDI Port to 1 on the
connected MIDI device or computer.
Port 3
This port is used as the MIDI Thru Port. The MIDI data
received over Port 3 via the [USB TO HOST] terminal will
be re-transmitted to an external MIDI device via the MIDI
[OUT] terminal.
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MONTAGE Owner's Manual
The MIDI data received over Port 3 via the MIDI [IN]
terminal will be re-transmitted to an external device
(computer, etc.) via the [USB TO HOST] terminal. When
using a USB connection, make sure to match the MIDI
transmit port and the MIDI receive port as well as the MIDI
transmit channel and the MIDI receive channel. Make sure
to set the MIDI port of the external device connected to this
instrument according to the above information.
Audio channels
The audio signals of the MONTAGE can be output to the
[USB TO HOST] terminal and the OUTPUT [L/MONO]/[R]
jacks.
When connecting to a computer, use the [USB TO HOST]
terminal. In this case, up to 32 audio channels (16 stereo
channels) are available when the sampling frequency is
44.1 kHz, and up to eight audio channels (four stereo
channels) are available when the sampling frequency is
between 44.1 kHz and 192kHz. The output-to-channel
assignments are made as follows: [EDIT]  [Part Settings]
 "Part Output" in the [General] display.
The audio signals of the MONTAGE can be input from the
[USB TO HOST] terminal and the A/D INPUT [L/MONO]/[R]
jacks.
Up to six channels (three stereo channels) of audio can be
input to the [USB TO HOST] terminal. Set the output level
in the Mixing display or the Performance edit display. The
signals are output to the OUTPUT [L/MONO]/[R] jack (two
channels.) Also, up to two audio channels (one stereo
channel) can be input to the A/D INPUT [L/MONO]/[R]
jacks. The signal is sent to the A/D input part of the
MONTAGE. For more details, see the Reference Manual
PDF document.