def syn.st2
import emerging-ezaudio@0.4.0.0/src/mp3_syn.bend as Mp3Synimport Base
1544# append the second channel's overlap. The spectrum Array already holds both.
1545def syn.st2(+ova: List<&2, F32>, bb: Im) -> Im:
1546 match bb:
1547 case Im{buf, ovb}:
1548 Im{buf, List.append(&2, F32, ova, ovb)}