Yamaha 6 MODX 6/7/8 Owners Manual - Page 60
Precautions when using the [USB TO HOST], terminal, MIDI channels and MIDI ports, Audio channels
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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 to avoid freezing the computer and corrupting or losing the data. NOTICE • Use an AB type USB cable. USB 3.0 cables cannot be used. • 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 operations: (1) when turning the power of the instrument off then on again, or (2) when alternately connecting/ disconnecting the USB cable. 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. 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 MODX 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. 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. 56 MODX Owner's Manual Audio channels The audio signals of the MODX 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 10 audio channels (5 stereo channels) are available. The output-to-channel assignments are made as follows: [EDIT] [Part Settings] "Part Output" in the [General] display. The audio signals of the MODX can be input from the [USB TO HOST] terminal and the A/D INPUT [L/MONO]/[R] jacks. Up to four channels (two 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] jacks (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 MODX. For more details, see the Reference Manual PDF document.