- In Ardour, every <dfn>region</dfn> has a <dfn>gain envelope</dfn>, which is normally hidden. Clicking on the Draw tool will cause all the gain envelopes on all regions to show themselves; these will appear as green lines with square dots (<dfn>control points</dfn>) at the beginning and end of each region. The vertical axis represents gain, with the top of the region representing +6dB and the bottom representing approximately -170dB. By default, the line starts and ends at 0dB; the control points can be moved up and down to change the amount of gain at that point.
+ In Ardour, every <dfn>region</dfn> has a <dfn>gain envelope</dfn>, which is
+ normally hidden. Clicking on the Draw tool will cause all the gain envelopes
+ on all regions to show themselves; these will appear as green lines with
+ square dots (<dfn>control points</dfn>) at the beginning and end of each
+ region. The vertical axis represents gain, with the top of the region
+ representing +6dB and the bottom representing approximately -170dB. By
+ default, the line starts and ends at 0dB; the control points can be moved up
+ and down to change the amount of gain at that point.