Reducing transmission of electromagnetic waves through a barrel portion of an optical module. In the case of a multi-word data transfer instruction LSM, the trace controller 120 is able to trigger tracing partway through that instruction such that a subset of the transfer specified by that instruction are included within the trace data stream. The present invention is also directed to a continuous pressure seal apparatus and an apparatus for the pasteurization andor sterilization of a continuous web of flexible packages. The data stored in the write register is transmitted to the output means 123 through write data buses WD,WD, an inputoutput means 122, and the second read data buses RD2, RD2. According to preferred aspects of the method, a confusability check is performed on the nametag utterance within the cluster associated with the nametag utterance, stored nametags are received from memory by decoding the nametag utterance within the cluster associated with the nametag utterance, and the stored nametags are played back by cluster.