furnace/doc/8-advanced/spectrum.md

spectrum

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

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

clicking the threeline 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.