def side.mid
import emerging-ezaudio@0.4.0.0/src/mp3_enc.bend as Mp3Encimport Base
1262def side.mid(st: Bw, +part: U32, +big: U32, +gain: U32) -> Bw:
1263 bw.field(1n, bw.field(4n, bw.field(8n, bw.field(9n, bw.field(12n, st, part), big), gain), 0), 0)