Spectral shaping applies amplitude scaling in the frequency domain according to the specified frequency/gain pairs. The scaling function is linearly interpolated between neighbouring points.
Choose frequency/gain pairs to achieve the desired spectral output. Spectra and output volumes are updated on the fly.
The Spectra Analysis window is a useful tool for comparing spectra before and after shaping.
- In the Control Panel, open the Process tab.
- At the tab header, click the Add icon and select New Process.
- Double-click Spectral Shaping.
- Type a name for the process and click OK.
Spectral Shaping settings
- In the Volume search box, select the seismic volume to process.
Apply inverse - applies a reversed version of the filter.
- To undo or remove spectral shaping, use the "Apply inverse" setting with the original filter parameters.
Fill the gain control section with:
- Frequency: the frequency to which the gain is applied
- Gain: the amplitude of the gain to be applied (in decibels)
- Click the blue + button to add a new Frequency.
The output volumes can be viewed in any of the following views:
- IL/CL View
- 3D View
- Map View
Spectral Shaping Examples
Note: Spectral shaping can distort your data if applied incorrectly. Choose appropriate parameters for your data and always QC your results.
The following examples show Spectral Shaping applied to a gathers volume with different frequency and gain settings: