Gameitall 
The Highly needed patch for the Silent Hill HD Collection has finally become live for PS3 owners with the 360 Patch coming soon.
Konami released information about their patch via Facebook stating that this particular patch will fix the following issues:
• Improved Framerate
• Voice Synch is greatly improved
• Missing sounds have been fixed
• Missing music has been addressed
• Fog density issues are resolved
• Other minor visual/audio improvements
Konami is currently working on the 360 Patch and Downpour’s issues as well.
