When playing my Recorder I found out that each note was half tone (sharp) up... I was wondering if this is a problem with the flute, or with my technique of blowing...

I have also noticed that when playing it really gently the tone is correct, the thing is that this way, I lose some of the dynamics and color of the instrument.

Is the problem my playing or the recorder? is there a way to "down tune" the recorder a half tone down (to make it flat all the way) ?

Conclusion

I have pulled out the mouth-piece a bit, it wasn't 100% on the money so I used a bit autotuning, the end piece can be found here.

Thanks for the help!