Changed to requestAnimationFrame for animation

Currently the line has some very sharp edges and the changes in fundamental pitch are erratic. Red microphone line is not
being plotted.
Smoothed outputline

Interpolation between previous and current tone in toneView. Also changed to requestAnimationframe for the updaterate. Microphone input not working but
seems to be because of Linux incompabilities. Removed old AVG-update method
separated tones and further smoothing

Now each silent passage invokes a new drawing space. this is better instead
of having one continous line over time. the line is also thicker to be more
directly relatable. Further interpolation would be desired where the current value also depends on further historical values.