Decode an already-fetched buffer into a clip and cache it under name.
Useful when bytes come from somewhere other than fetch (e.g. a glob
import that already resolved to an ArrayBuffer).
Drop a single cached entry (or all entries when url is omitted).
Optionalurl: string
Loads and decodes audio files into AudioClips, caching results so the same URL is fetched and decoded only once. In-flight loads are deduped: two concurrent
load(url)calls share a single fetch+decode.