Universal Audio Realtime Rack - Manual (Page 60)

Realtime Rack Manual Chapter 4: Realtime Rack Application 60
Changing tempo values via MIDI
Tap tempo can be used to set a new tempo from incoming MIDI that are received via the
Mac OS X operating system. This method requires any external MIDI hardware and/or
MIDI software that is recognized by Audio MIDI Setup (which is Mac OS X’s MIDI routing
utility application (located in /Applications/Utilities).
About external MIDI tap tempo control
• Audio MIDI Setup must be configured before Realtime Rack is launched. After it
is properly configured, Audio MIDI Setup does not need to remain open.
• MIDI note values or MIDI controller values can be used as the data source.
• Realtime Rack cannot synchronize the tempo to incoming MIDI beat clock.
MIDI configuration/setup
1. Before Realtime Rack is opened, verify the MIDI output device and/or MIDI soft-
ware is configured properly and active in Audio MIDI Setup.
2. In the View Menu>Settings>MIDI Tab ( page 116 ), set the values for MIDI DE-
VICE, MIDI CHANNEL, DATA TYPE, and DATA VALUE to match the transmitted
MIDI data.
3. Transmit the MIDI note or controller (as specified in the previous step) at least
four times to establish the tempo. The Tempo Display is RED during this period.
4. After a new tempo value is established, the new tempo is used and the Tempo
Display changes back to BLACK. Simply retransmit the MIDI data to apply further
tempo updates.