Denis007,
I agree with Dreamer in that if you're having trouble finding a loop point by ear, it would be easier to do it by looking at the waveform. From what I was told by Yamaha the 9000 pro's sampler is almost indentical to that of the Yamaha EX series. I used to own the EX-7 and I used its sampler a great deal. Question...., what are you sampling that is 11 seconds long? Like Dreamer stated that is a rather long sample. You can actually find the loop point by ear, but it takes some practice. The only time I used the visual waveform in my EX's sampler was when I had a really thick sample that had a lot of activity within it.

Squeak