def pk.chan
import emerging-ezaudio@0.4.0.0/src/mp3_enc.bend as Mp3Encimport Base
1342def pk.chan(
1343 specs: List<&2, List<&2, F32>>, +hz: U32, +bud: U32, acc: List<&2, Gr>
1344) -> List<&2, Gr>:
1345 match specs:
1346 case Nil{}:
1347 List.reverse(&2, Gr, acc)
1348 case +hd <> tl:
1349 pk.chan(tl, hz, bud, gr.of(hd, hz, bud) <> acc)