This is a very basic question, but here it goes. I am using SignalScope to display an audio waveform. In this case 440 Hz sine wave. The display shows an amplitude of about 1 FS, with the waveform bouncing all over the place for lack of re-triggering the scope scan. Now, I have enabled triggering, created a trigger on the same input, set the threshold to 10 mFS, trigger on positive, auto mode. Waveform still bouncing all over the place. I have tried just about every combination of mode, threshold, and slope to not avail. What am I missing?