I haven't tried either of the Akai wind controllers but I do have a WX5, and I play all the horns. After over 50 years playing, I can say I don't think I ever breathed through my nose. Instead, sneak quick breaths in through the corners of your mouth.

My guess is that you may be overblowing. With woodwinds, think of emulating a balloon and how you would let the air out gradually to make a high-pitched noise. You need good deep breathing (use your diaphragm, don't raise your shoulders) and let it out in a controlled way.

After some practice you should find it gets easier.


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