def step.dat
import emerging-ezaudio@0.4.0.0/src/wav.bend as Wavimport Base
220def step.dat(
221 isd: Bool, +tag: U32, +sz: U32, +seen: U32, +kind: U32, +ch: U32, +rate: U32,
222 ys: List<&2, U32>, frames: List<&2, U32>
223) -> St:
224 match isd:
225 case False{}:
226 step.next(sz, tag, seen, kind, ch, rate, frames)
227 case True{}:
228 step.pcm(U32.is_eq(seen, 1), sz, kind, ch, rate, ys, frames)