r recording (after the current DMA transfer buffer has been processed), removes its remaining enqueued buffers, and sends the object's delegate a <b>soundStreamDidAbort:deviceReserved:</b> message.&nbsp; The argument is ignored--it's included so the method can be used in Interface Builder as an action method.&nbsp; You should follow this method with an invocation of <b>lastError</b> to see if an error occured.&nbsp;&nbsp; If the NXSoundStream isn't currently active, this does nothing.&nbsp; Returns <b>self<