public void setSurroundExMode(String surroundExMode) {
        this.surroundExMode = surroundExMode;
    }
Specify whether your input audio has an additional center rear surround channel matrix encoded into your left and
right surround channels.

@param surroundExMode
       Specify whether your input audio has an additional center rear surround channel matrix encoded into your
       left and right surround channels.
@see Eac3AtmosSurroundExMode
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/Eac3AtmosSettings.java