| Clock: The clock records time in seconds and tenths of seconds. You can place the clock anywhere in the simulation window and move it using the Select tool. The clock only starts running when calculations have finished in Run mode. The clock always starts running from zero, not Sound Lab's begin time. Clicking on Pause stops the clock. Clicking on Run again resets the clock to zero and restarts it. You must place the clock to plot time using the graph tool.