The only one I know is the "ssss" exercise where you let out the air and see how long you can go for. I can only do that for about 30 seconds average so my air flow control must be pretty bad. Anyone know any great exercises besides that one that I can practice?
Also, is there anything special you need to be doing to better control air flow while singing? Do you keep your core tight or are you supposed to be completely relaxed? I've heard people talk of using back muscles and etc. Thanks.