Noise reduction measures by the sound barrier to sound insulation window is not weakened
Although the sound barrier to control the impact of a certain noise, but the need for adequate height and length of the effectiveness of protection. If the height and length of the lack of that can only play a psychological comfort.
When the installation of sound insulation window hot days when people open the window ventilation, then the sound window is no effect. If you can install a ventilated soundproof window the best.
Not weakened, should be changed to change technical measures. But the wheel effect, the pros and cons.