@clint
I found an online tone generator: https://www.szynalski.com/tone-generator/. At 466 Hz (A#4) it sounds exactly like the C note on my Sylphyo set on Bb2.
I will inform the conductor. The band was always tuned by ear. Maybe the acoustic instruments will have to be tuned to the sound of the Sylphyo now.

I recently joined a fanfare band with my Sylphyo. I am the only one there with an electronic instrument. I have the Sylphyo set on Flute Phi with the base key set on Bb2.
It turns out that there is a significant difference in pitch compared to the other acoustic instruments. Is there a way to adjust the pitch? What is the frequency of the middle C note on the Sylphyo?

@paul-flute
I adjusted the the breath minimum and range settings indeed. No differences. In fact I didn't notice any changes in behavior at all. I could not find a max breath setting. Did you mean range?
There is no noise. The tones are good, but when it is in that state, pressing a key results in a tone that doesn't match that key. Recording is difficult because it happens only one and a while.
Thanks for the suggestion for further help, but I am not so into computerised music and recording. I just play in a brass band and I cannot showup there with a computer or synthesizer. Bringing the Sylphyo and speaker already was an issue.
I think I will bring the Sylphyo back to the seller.

Hi Clint,
Thanks for responding. I am really new to wind instruments. I only use the Sylphyo as it comes out of the box. I sometimes use a headphone, sometimes the Link connected to an active loudspeaker. So I think I use the internal sounds, isn't it? The behavior is the same in both cases.
I know nothing about, nor use MIDI.
Mostly, I have set the sound on Flute Phi (30). Today, I discovered that when I set it on MacGuffin (1), the respond to breath pressure is a bit better, dough not spectacular.
My other points occur less frequent now. I have the impression that they come from my inexperience handling the Sylphyo. Is that possible? I am used to handling an acoustic sax which is less sensitive.

I have some troubles with my Sylphyo (software version 1.4.8):

• it sometimes suddenly stops producing sounds while playing
• it sometimes gets in a state producing wrong tones
• it does not respond to my breath pressure so the sound volume is always the same

Does anyone recognize this behavior?

Hi,

I am an experienced saxophone player but I am new to EWI's. I recently bought a Sylphyo. I find it hard to play the thing, especially with short notes. When I play the mouthpiece as I would do on my sax hitting it repeatedly with my tongue, the notes won't come out as I would expect.
When I don't use my tongue just blowing into it with short strokes, I am out of breath within one or two measures.
I tried several breath settings and plugs in the bell but I could not solve my problem.
See the first few minutes of https://www.youtube.com/watch?v=DCPS5wBcMB0. How does he do that?