If you are using a digital converter, try pressing "Mute" on the digital converter remote to be sure it is not muted. Also check to make sure the volume on the converter box is not all the way down. If you are not using a converter box or you already checked your converter box, check to make sure your TV is not muted or in another audio mode such as "SAP". Check your TV volume as well. Consult your TV instruction manual for further assistance with your TV or contact us for further assistance with your converter box.