# spectrum

the Spectrum window shows the frequency spectrum of the audio output.

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![spectrum window]()-->

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the X scale is in Hertz, and the Y scale is in decibels.

clicking the threeline <!--REPLACE--> button in the top left corner open its configuration.
- **Mono**: whether to mix all the output for a single graph.
- **Bins**: number of bins for the FFT calculation.
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- **X Zoom**: how much to zoom the X axis.
- **X Offset**: how much to move the X axis.
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- **Y Offset**: how much to move the Y axis down.
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- **Show X Grid**: whether to show the X axis grid lines.
- **Show Y Grid**: whether to show the Y axis grid lines.
- **Show X Scale**: whether to show the X axis scale.
- **Show Y Scale**: whether to show the Y axis scale.