Just wondering if there is a code that mutes all characters soundbanks?

  okay guys here is the problem. For some reason every time I play smash bros. 4 on 4 stock match  about 3 mins in I get that beeping freeze noise.
I don't quite kno what the problem is but I think it's my gct file, I think I may have too many of those one character over another codes.
If anyone else has had a problem like this and knows how too fix it I would greAty appreciate it.
Thanks in advance.