def im.sign

emerging-ezaudio@0.4.0.0 · src/mp3_syn.bend:484

import Base

484# frequency inversion after the IMDCT. base is the channel offset.
485def im.sign(st: Im, +base: U32) -> Im:
486  match st:
487    case Im{buf, ov}:
488      Im{sg.b(16n, buf, u.add(base, 18)), ov}