You can use the Metering tools to analyze audio in a variety of ways. These plug-ins offer you different ways to view your audio than the meters shown in channel strips. The Metering plug-ins have no effect on the audio signal and are intended for use as diagnostic aids.
Each meter is specifically designed to view different characteristics of an audio signal, making each suitable for particular studio situations. For example, BPM Counter displays the tempo, Correlation Meter displays the phase relationship, and Level Meter displays the level of an incoming audio signal.