Frequency Split
Splits an input volume into N output volumes, corresponding to different frequency bands of the original volume, by successively applying low-pass Butterworth filters and subtracting the filtered result from the input.
Create Frequency Split
![Create angle stacks process](https://media.screensteps.com/image_assets/assets/005/143/559/original/9b4cb69e-07f8-4fc2-b89d-168060a270ea.png)
- In the Control Panel, open the Process tab.
- Click the blue "+" icon and select New Process.
- Search and double-click Frequency Split.
- Type a name for the process and click OK.
Define settings for Frequency Split
![Define settings for angle stacks](https://media.screensteps.com/image_assets/assets/005/143/560/original/d02f4f1f-5e56-4058-b4f4-60ca65d5a402.png)
- Select the Volume.
- Filter slope: Must be a negative value.
- Click the blue "+" icon to add the Frequency band.
- Frequency bands: Specified in terms of -6dB (50% amplitude) points of consecutive low-pass filters. Note that the frequency band definition of -6dB differs from the band-pass filter definition of -3dB. This is required to ensure the lower frequency value of a band is also -6dB.