Hey everyone,

I'm trying to remake or obtain this sound effect I hear at times in many bay area tracks or party I hear.

Far East Movement - Boomshake w/ Download - YouTube

You can hear it starting 20 seconds, that "whistling sound"

Timbaland - Carry Out ft. Justin Timberlake - YouTube

You can hear it from 00-09 seconds a little bit.

Can someone help me? Thanks!