Displays a horizontally scrolling spectogram, which is a visual representation of its input audio spectrum over time. Besides examining the frequency contents of its input audio signal, it’s also useful for providing visual feedback on custom Nodes.
Inputs
Audio Input
The audio or control signal to analyze.
Settings
Resolution
Sets the FFT size used for frequency analysis. Larger values produce more frequency detail but require more CPU. Values above 1024 require AudioNodes HD.
Smoothing
Controls how much the visualization smooths over time, from 0 (no smoothing) to 1 (maximum smoothing). Higher values create a slower, more gradual response to changes in the input signal.
Min dB
Sets the minimum decibel level displayed. Frequency content below this level is not shown.
Max dB
Sets the maximum decibel level displayed. Frequency content above this level is drawn at full intensity.
Width
The Node width, in pixels.
Height
The Node height, in pixels.
Theme
The spectogram’s color theme.
Orientation
Sets whether analyzer bars are displayed vertically or horizontally. Note: pinned header orientation is always horizontal.
Contrast
Controls the visual contrast of the visualization, from 0 (no contrast) to 1 (maximum contrast).
Similar Nodes
- The Spectrum Analyzer Node is also useful for examining the audio spectrum.
- Bandpass Filter Nodes can also be used to split the audio spectrum into regions and examine the amplitude of each region.