¶ Spectrum Capture
Category: 🔊 Audio
¶ Description
Performs FFT (frequency spectrum) analysis on an incoming audio stream. Use a 0-1 cursor on the Read input to scan through the frequency bins.
Drive the Read cursor with a clock from 0 to 1 (e.g. via Stream Capture's progress, or any ramp) - the Output emits the magnitude of each frequency bin in order, from low to high. Wire the Output into a Procedural Line's thickness or Y position to draw a live spectrum analyzer.
¶ Inputs, Outputs and Parts
¶ Inputs
| Name | Type | Description |
|---|---|---|
| Input | Stream Input | The signal you wish to analyze. |
| Read cursor | Stream Input | Expects a clock going 0→1. Maps to frequency bins from low (0) to high (1) on the Output. |
¶ Outputs
| Name | Type | Description |
|---|---|---|
| Output | Stream Output | Magnitude of the frequency bin at the current Read cursor position. |