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Stretch x-Axis details

This function implements the correction for frequency scale shifts and stretches in IR-spectra. Constant offset corrections (x-axis shifts) and stretches at specified frequencies are possible. The correction is performed by spectral interpolation with a convolution filter.

The Stretch x-Axis command is available in the Mathematics menu.

Stretch x-Axis parameters​

The following parameters can be adjusted:

X-Axis shift​

Specifies the constant offset correction for the x-axis. The axis will be shifted by the entered value.

Stretch correction​

Specifies the stretch correction that will be applied at the selected stretch frequency.

Stretch frequency​

Specifies the desired stretch frequency.