public void setRateControlMode(String rateControlMode) {
        this.rateControlMode = rateControlMode;
    }
Specify whether the service encodes this MP3 audio output with a constant bitrate (CBR) or a variable bitrate
(VBR).

@param rateControlMode
       Specify whether the service encodes this MP3 audio output with a constant bitrate (CBR) or a variable
       bitrate (VBR).
@see Mp3RateControlMode
aws-java-sdk-mediaconvert/src/main/java/com/amazonaws/services/mediaconvert/model/Mp3Settings.java