The post hoc analysis of our data pool was simply an attempt to determine if 'routine' tests were in any way uniquely sensitive to the sonus complete complaint. Other causes of sonus complete include but are not limited to very loud noises which can damage ears causing hearing loss and increase the risk of developing sonus complete . I used to have this problem as well, so I am very familiar with how frustrating that is. By now you know the six major causes of pulsatile sonus complete and like any other sonus complete sufferer you are eager to get rid of it permanently.But there is something you don't know yet. If the ringing sound is driving you crazy, doctors will suggest covering it up with another sound.