MSVC build

Hi,

I imported the code in Polyphone but when I build it with MSVC:
"char buffer[i];" is not allowed (you can use new char[i] and delete [] instead). This appears at 2 positions in the code.

The line "char buffer[1024*1024];" can be compiled but this crashed the software. Using new char[1048576] and delete [] solved the problem.
