When it comes to soundproofing a ceiling it is essential you consider the two parts that make up nuisance sound. They are impact and airborne sound.
The GenieClip ceiling is the best performing suspended ceiling system available from both an airborne and impact sound perspective. A suspended ceiling is where you are attaching the sound proof system to the existing joists.
In performance terms it is far superior to a resilient bar system and second only to a full independent ceiling. This extra performance derives from the much higher level of resilience that is manifest within the GenieClip structure, the vibration of sound transmission being absorbed better with rubber than with the metal of resilient bars. In effect the mass of the new soundproofing surface that you are adding is much better isolated than is the case with resilient bars.