Adjusting a selection

After you've created a selection, you can use the commands in the Process > Selection submenu to refine the selection.

For more information, see Selecting spectral data

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Expanding a selection

1. Create a new SpectraLayers project or open an existing project file.

   For more information, see Creating a new project or Opening a project or an audio file

2. In the Layers Panel, click the layer that you want to edit.
3. Create a selection. For more information, see Selecting spectral data
4. Choose Edit > Modify Selection > Expand to display the Expand dialog.

5. Type a value in the Expand Horizontally by box to increase the selection horizontally by the current FFT Size and Time Overlap values.

   For example, if the FFT Size control in the Spectral Settings toolbar is set to 512 samples and the Time Overlap is set to x4, typing 2 in the Expand Horizontally by box would increase the selection by 640 samples (512+512/4).

6. Type a value in the Expand Vertically by box to expand the selection vertically around the peak frequency by the specified number of bins (spectral samples).
7. Click OK.

Contracting a selection

1. Create a new SpectraLayers project or open an existing project file.

   For more information, see Creating a new project or Opening a project or an audio file

2. In the Layers Panel, click the layer that you want to edit.
3. Create a selection. For more information, see Selecting spectral data
4. Choose Edit > Modify Selection > Contract to display the Contract dialog.

5. Type a value in the Contract Horizontally by box to reduce the selection horizontally by the current FFT Size and Time Overlap values.

   For example, if the FFT Size control in the Spectral Settings toolbar is set to 512 samples and the Time Overlap is set to x4, typing 2 in the Contract Horizontally by box would reduce the selection by 640 samples (512+512/4).

6. Type a value in the Contract Vertically by box to reduce the selection vertically around the peak frequency by the specified number of bins (spectral samples).
7. Click OK.

Smoothing a selection

Smoothing a selection allows you to soften the hardness of the selection edge. Smoothing a selection helps you create blended sounds.

1. Create a new SpectraLayers project or open an existing project file.

   For more information, see Creating a new project or Opening a project or an audio file

2. In the Layers Panel, click the layer that you want to edit.
3. Create a selection. For more information, see Selecting spectral data
4. Choose Edit > Modify Selection > Smooth to display the Smooth dialog.
5. Type values in the Smooth Horizontally by and Smooth Vertically by boxes to set the radius of the blur filter.
6. Click OK.

Sharpening a selection

Sharpening a selection allows you to increase the hardness of the selection edge. Sharpening a selection helps you create a precise selection with sharp edges — perfect for creating precise selections of narrow frequency bands.

1. Create a new SpectraLayers project or open an existing project file.

   For more information, see Creating a new project or Opening a project or an audio file

2. In the Layers Panel, click the layer that you want to edit.
3. Create a selection. For more information, see Selecting spectral data
4. Choose Edit > Modify Selection > Sharpen to display the Sharpen dialog.
5. Type values in the Sharpen Horizontally by and Sharpen Vertically by boxes to set the radius of the sharpen filter.
6. Click OK.