for stereo image metering
Vectorscope for stereo image metering. Shape can be set to diamond or circle (radially stretched). The B view folds the negative half over the positive. Includes a balance meter (below) and a correlation meter (on the right).
The scope is autoscaled to input level. Autoscale sets the time it takes to recover from peaks. Meters time affects the speed of the bars. Peaks time sets how long peak marks are held. All timings are in ms. Threshold sets the level at which scope and meters start working, to avoid metering near silence.
v1.1: Renamed timing controls. Added a control for autoscale release.
v1.2: Fixed behavior for very low level. Added a control for threshold.
v1.3: Added Block versions -one bipolar and small, one folded and bigger.
v1.31-34: Mainly UI tweaks.