let ch0 = abuf.get_offset(0) + self.sample_offset;
let ch1 = abuf.get_offset(1) + self.sample_offset;
let mut adata = abuf.get_abuf_i16().unwrap();
let ch0 = abuf.get_offset(0) + self.sample_offset;
let ch1 = abuf.get_offset(1) + self.sample_offset;
let mut adata = abuf.get_abuf_i16().unwrap();