Synopsis
		sfzerocross < in.rsf > out.rsf levels=3

Parameters
		int levels=3 levels of quantization [2,3,5]. levels=2 1: zero crossing or zero; 0: otherwise levels=3 1: positive to negative zc; -1 negative to positive zc; 0: otherwise levels=5 +/-2: positive/negative values; +/-1: as in levels=3; 0: zero.

Used In
		SWAG          itime/oz2 itime/oz6 itime/syn