Does anyone know how I can make similar sharp roll-off at 16000 Hz like in this pic? I know Sound Forge has 3 different eq's but I can't get the result like in this pic... I've tried all them with different settings but it just doesn't work... I don't want "smooth" roll-offs but a sharp like in this one, so that there's 'absolutely' nothing after 16000 Hz.. help please??