MOTU UltraLite-mk3 - Hybrid FireWire/USB 2.0 Audio & MIDI Interface - Manual (Page 97)

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PHASE ANALYSIS
The Phase Analysis window (Figure 10-46 on
page 97) graphs frequency versus phase difference
versus amplitude of a stereo signal on either
rectangular or polar coordinates.
In rectangular coordinates, the vertical axis
represents frequency, and the horizontal axis
represents the phase of the left channel minus the
phase of the right channel (measured in radians).
In polar coordinates, the radius represents
frequency and the angle (theta) from the +y
vertical axis represents the phase difference of left
channel minus the right channel.
Correlation Meter
The blue Correlation Meter to the right of the
display shows the correlation between the two
channels. The higher the meter, the higher the
correlation between the two channels.
Opening the Phase Analysis
Each mk3 series FireWire audio interface has its
own Phase Analysis window. Choose the
Phase
Analysis item from the Devices menu under the
desired interface (Figure 10-32 on page 88).
Choosing a channel pair to display
The Phase Analysis window follows the currently
focused audio input or output. If you focus a mono
channel (e.g. Analog 3), its corresponding stereo
pair will be displayed (Analog 3–4).
View controls
The View controls (Figure 10-47) provide several
options for the Phase Analysis display.
Figure 10-47: View controls
Pausing the display
The Pause button in the upper right corner of the
View section (Figure 10-47) allows you to freeze
the display at any time. To resume, click the button
again. The correlation meter will remain active
while the display is paused.
Figure 10-46: Phase Analysis
Pause button