< incoming events for this block (optional)
< incoming parameter changes for this block
< buffers of input buses
< number of audio input buses
< number of audio output buses
< number of samples to process
< outgoing events for this block (optional)
< outgoing parameter changes for this block (optional)
< buffers of output buses
< processing context (optional, but most welcome)
< processing mode - value of \ref ProcessModes
< sample size - value of \ref SymbolicSampleSizes
Any data needed in audio processing. The host prepares AudioBusBuffers for each input/output bus, regardless of the bus activation state. Bus buffer indices always match with bus indices used in IComponent::getBusInfo of media type kAudio. \see AudioBusBuffers, IParameterChanges, IEventList, ProcessContext