Effects Reference

7
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7 Metering
You can use the Metering plug-ins of Soundtrack Pro
to analyze audio in a variety of ways.
Each Metering plug-in allows you to view different characteristics of an audio signal. For
example: The BPM Counter displays the pitch of a note, the Correlation Meter displays
the phase relationship, and the Level Meter displays the level of an audio recording.
This chapter describes the Metering plug-ins included with Soundtrack Pro:
 “Correlation Meter” on page 87
 “MultiMeter” on page 88
 “Surround MultiMeter” on page 91
 “Tuner” on page 92
Correlation Meter
The Correlation Meter displays the phase relationship of a stereo signal.
 A correlation of +1 (plus one, the far right position) means that the left and right
channels correlate 100% (they are completely in-phase).
 A correlation of 0 (zero, the center position) indicates the widest permissible left/
right divergence, often audible as an extremely wide stereo effect.
 Correlation values lower than zero indicate that out-of-phase material is present,
which can lead to phase cancelations if the stereo signal is combined into a
monaural signal.