### Transport Window

Summary: This section describes how to use the transport window to configure the internal clock or slave the host clock to an external MIDI device. It also discussing mapping MIDI controllers to the transport window controls.

The transport window provides facilities for controlling the internal clock for a specific document. A document may provide its own clock (host clock) or be slaved to a clock source provided by an external MIDI device.

The Transport Window

If the clock source is set to an external device, the individual transport controls are not editable. In this state, it is only possible to monitor changes to the clock provided by the external clock source.

#### Setting the clock tempo

The rate of the clock can be modified via the tempo slider or numerically via the Beats Per Minute or BPM edit text field. Note that the upper and lower range of the slider can be edited by clicking on the label of either item and entering a new value.

Alternatively, the Tap Tempo button can be used to define the tempo. Tapping the button on the beat will calculate the tempo value and update the controls appropriately.

The meter field allows the user to specify the time signature of the beat clock.

#### Starting and stopping the clock

The clock can be stopped and stopped by toggling the Play/Pause button. Clicking the Restart button resets the clock to 1.1.000. Note that the clock can only be started when the Engine is running.

#### MIDI Mapping

The Play/Pause, Restart, Tempo slider, and Tap Tempo buttons may all be mapped to MIDI controls. See Control MIDI Mapping and MIDI Mappings Window for more information on mapping controls to MIDI.