Removing sound above 16000Hz
I've just purchased the 'Starter Pack' in an attempt to remove some extremely high pitched sounds from some video files I'm editing, but the equalizer seems to top out at 16000Hz with no customization of the affected ranges. Am I missing something here? I'm pretty sure the sound is somewhere around 18-20k Hz (maybe higher!), and I can't remove it with the Equalizer.
Thanks in advance!