Metric Halo SpectraFoo - Manual (Page 39)

Instruments
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Figure 3.36: Spectragram (horizontal orientation)
Time runs from right to left, with higher levels indicated by brighter colors.
The Spectragram may also be configured to display time running from bottom to top by Option-clicking the
instrument or in the Spectragram preferences:
Figure 3.37: Spectragram (vertical orientation)
Using the Spectragram in vertical orientation along with the Spectragraph can give you two very different yet
complimentary views of your audio.