Thanks. I don't understand the square root though. The equation is even more expensive processor-wise than the straight cos.

Granted, you're quoting someone else, but maybe someone out there knows.

On Nov 11, 2010, at 9:40 PM, Ralf Mardorf wrote:

In January Rui at Qtractor devel-list wrote:

stereo panning in qtractor follows an "approximated equal-power"
trigonometric formula: L = SQRT2 * cos(pan * PI/2); R = SQRT2 * sin(pan
* PI/2), where pan value ranges from 0 (full-left) to 1 (full-right).