ReadonlyoutputsReadonlyconnectionsEvery connect call with its output/input indices (channel routing tests).
ReadonlycontextReadonlyplaybackReadonlydetuneReadonlystartsReadonlystopsOptionaltarget: AudioDestinationNode | FakeAudioNodeOptionaloffset: numberOptionalduration: numberSimulate the clip running out.
AudioBufferSourceNodestand-in recording starts/stops;end()firesonended.