This slider affects the circular buffer read/write cursor position of the current WaveRt pin. The adjustable range equals the size of the entire circular buffer.

The offset is relative to the cursor position as calculated by ASIO4ALL. In the unlikely event that some manual adjustment is required, you can try to find a better cursor position by moving the slider around inside the circular buffer.

Should remain in its default, leftmost position, otherwise!

If the pin in question currenty has no adjustable circular buffer, moving the slider will do nothing at all.