> Sound.SC3.UGen.Help.viewSC3Help "ZeroCrossing"
    > Sound.SC3.UGen.DB.ugenSummary "ZeroCrossing"

> import Sound.SC3 {- hsc3 -}
>
> g_01 =
>     let a = sinOsc AR (sinOsc KR 1 0 * 600 + 700) 0 * 0.1
>     in mce [a, impulse AR (zeroCrossing a) 0 * 0.25]