public void setTeletextSpacing(String teletextSpacing) {
        this.teletextSpacing = teletextSpacing;
    }
Specify whether the Text spacing in your captions is set by the captions grid, or varies depending on letter
width. Choose fixed grid to conform to the spacing specified in the captions file more accurately. Choose
proportional to make the text easier to read for closed captions. Within your job settings, all of your DVB-Sub
settings must be identical.

@param teletextSpacing
       Specify whether the Text spacing in your captions is set by the captions grid, or varies depending on
       letter width. Choose fixed grid to conform to the spacing specified in the captions file more accurately.
       Choose proportional to make the text easier to read for closed captions. Within your job settings, all of
       your DVB-Sub settings must be identical.
@see DvbSubtitleTeletextSpacing
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/DvbSubDestinationSettings.java