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When I go on continuing my koch course, the code that I heard is much higher in pitch — not frequency. Not used to sounds like this.

Forgive me for the bad mistype.

Also, the new audio contains very bad clicks, which is very annoying indeed.

Joe, I just tried Koch lessons: no clicks on my Macbook. In settings (clicking on the wheel symbol to the right of where to enter Koch text) I can change the "edge" parameter to remove clicks by moving the slider more to the right. Personally I like a bit of clicking.

Similarly in the same settings I can change the pitch in real time by moving the slider.

73

Gerd.