impulse f ip

Impulse oscillator.  Outputs non band limited single sample impulses.

   f - frequency (in hertz)
  ip - phase offset (0..1)

> import Sound.DF

> do { o <- impulse 800.0 0.0
>    ; audition [] (out1 (o * 0.1)) }

> do { f <- fmap (\x -> x * 2500.0 + 2505.0) (sin_osc 0.25 0.0)
>    ; o <- impulse f 0.0
>    ; audition [] (out1 (o * 0.1)) }