def step.err.dec
import emerging-ezaudio@0.4.0.0/src/wav.bend as Wavimport Base
305def step.err.dec(
306 last: Bool, +phase: U32, +left: U32, +tag: U32, +sz: U32, +kind: U32, +ch: U32,
307 +rate: U32, acc: List<&2, U32>, frames: List<&2, U32>
308) -> St:
309 match last:
310 case False{}:
311 st.set(phase, (left - 1 : U32), tag, sz, 3, kind, ch, rate, acc, frames)
312 case True{}:
313 st.set(0, 4, tag, sz, 3, kind, ch, rate, [], frames)