Samples normalization

Hi, this is the first time I post here.

First of all, I'd like to thank all of you, because this forum has been really helpful to me.

I'm doing a real time filtering application. So I'm using the capturing and playing with queue routine. But when I modify the buffer, values may exceed the short max values.

Does anyone know how to normalizate buffers in realtime? I've tried to use a normalization loop, but I think this only work for a whole file, not for streaming.

Thanks in advance.