We have the Insignia converter box connected to our portable TV in the kitchen and the picture is fine but the volume is lacking. The loudest it gets can barely be heard if there are people talking in the kitchen. We have turned up the volume on the TV to the highest it will go as well as turning it up on the converter box but it just doesn't get very loud. If we really want to hear what is being said, we simply turn off the converter but then the picture is a little snowy but the sound is great! Can this be fixed? Thanks.