Soundtrack Pro 3 Effects Reference (en).pdf - Help Library - Apple
Soundtrack Pro 3 Effects Reference (en).pdf - Help Library - Apple
Soundtrack Pro 3 Effects Reference (en).pdf - Help Library - Apple
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Metering Tools 7<br />
You can use the Metering tools to analyze audio in a variety of ways. These utilities have<br />
no effect on the audio signal. They are simply used as diagnostic aids.<br />
This chapter covers the following:<br />
• Correlation Meter (p. 91)<br />
• MultiMeter (p. 91)<br />
• Surround MultiMeter (p. 96)<br />
• Tuner (p. 102)<br />
Correlation Meter<br />
The Correlation Meter displays the phase relationship of a stereo signal.<br />
• A correlation of +1 (the far right position) means that the left and right channels correlate<br />
100%—they are completely in phase.<br />
• A correlation of 0 (the c<strong>en</strong>ter position) indicates the widest permissible left/right<br />
diverg<strong>en</strong>ce, oft<strong>en</strong> audible as an extremely wide stereo effect.<br />
• Correlation values lower than 0 indicate that out-of-phase material is pres<strong>en</strong>t, which<br />
can lead to phase cancelations if the stereo signal is combined into a monaural signal.<br />
MultiMeter<br />
The MultiMeter provides a collection of professional gauge and analysis tools in a single<br />
window. It includes:<br />
• An Analyzer to view the level of each 1/3-octave frequ<strong>en</strong>cy band<br />
• A Goniometer for judging phase coher<strong>en</strong>cy in a stereo sound field<br />
91
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