LameQuality (Var quality default = 5)

Dear all,

Can someone tell me where (in which source file) to change the default 
setting value 5 for the quality var? I found the var definitionen int 
quality and the comment that default is 5 but I oould not find the file 
where the value 5 is set to that var.

I need to change the value because some tools like ices using LAME does 
not support the -q parameter so I want to fix it directly in LAME before 
compiling.

Thank you in advance.
-- 

Regards,
Adam