The Amplitude Ruler (Figure 12.15) measures the volume of audio data. In Waveform view, the ruler’s display format can be set to either Samples (exact sample value of the data), a percentage (from –100% to 100%, where 100% is 0 dB), or as a normalized value (–1 to 1). Left-click and drag on the Amplitude Ruler to scroll the waveform display vertically. Like the Display Range Bar, you can right-click and drag to zoom.
Figure 12.15: Audition’s Amplitude Ruler measures the relative amount of audio data.