Dave Smith Instruments PROPHET 12 DESKTOP - Manual (Page 59)

47 Prophet 12 Module Operation Manual Using USB
Using USB
The Prophet 12’s USB 2.0 port enables bidirectional MIDI communication with
a computer. A MIDI interface and MIDI cables are not necessary, just a USB
cable. The Prophet 12 is a Class Compliant USB device. That means it does
not require any additional drivers to be installed to communicate with a Mac or
Windows computer.
The Prophet 12 transmits and receives MIDI data via USB, but does not transmit
audio.
Note: MIDI In and USB should not be used at the same time, as overlap-
ping messages from different sources may cause the Prophet 12 to respond
unpredictably. MIDI Out and USB can be used at the same time and transmit
the same data.
USB Notes
Under Mac OS X, “Prophet 12 Keyboard” will appear as a MIDI port when
connected via USB and can be configured using the Mac’s Audio MIDI Setup
utility (typically found in Applications/Utilities).
Under Windows, the first time the Prophet 12 is connected via USB, the “Found
new hardware” alert appears and it is automatically installed as “Prophet 12
Keyboard.”
In Windows, if you unplug the USB cable and plug it back in while a program
has the Prophet 12 port open, you may have to resync. That usually means going
to the Prophet 12 Properties—in the Windows Device Manager under “Sound,
video, and game controllers”—and clicking OK. If Prophet 12 is no longer listed
in the Device Manager, power the Prophet 12 down and back up again while it is
connected via USB. It should be detected on power up.