Realitone has released RealiWhistle for Kontakt. With two whistling styles, round robins, legato, velocity dynamics, falls, ramps, vibrato, and even an ensemble mode, RealiWhistle is a comprehensive human whistle instrument.
Two different whistling styles are featured: The typical "lips" style, and then an airier "tongue" style. For each, two dynamics with three round robins each were recorded.
Also included are keyswitchable ramps (rises) into each note, as well as falls, in two different speeds. Legato is also featured. The legato speed is adjustable via a slider. Finally, there's an ensemble option, where three whistles are stacked in one instrument. This enables "Bridge Over River Kwai" cues, or even pop songs like Foster the People's "Pumped Up Kicks" to be played in one instance of Kontakt, rather than having to open multiple tracks.
RealiWhistle requires Kontakt 4 or Kontakt 5 (Free Kontakt Player only works in 15 minute "Demo Mode" increments).
Price: $29. It's currently on sale at the introductory price of $19.50.