Thanks for your prompt reply. Here’s the reply to your questions:
I tried playing GarageBand, ThumbJam and Thor on my iPad and with Bench on my laptop.
I already changed the velocity to 127 before posting on the Community Forum.
I will next change the curve to as high as possible as you recommend.
Before posting I completely covered the “hole in the bell” with tape. That allowed me to get a faint sound.
I’m a runner living at high altitude in Colorado. Fortunately,enough breath isn’t an issue.
Thanks again for your help getting this glitch worked out. I really appreciate it!

I purchased my instrument last year but didn’t have the time to work on it so I just started today. I updated firmware, downloaded bench and GarageBand on my tablet. All set, right? The only way I came get a barely audible sound in my headphones is to completely cover the hole in the bell and blow REALLY hard. Not much volume. What setting adjustments or other changes should I make? Thanks!