Techniques for controlling collection of diagnostic data in a monitored system. A mnemonic is processed in the computer program having a user defined definition and a translator definition. The multichannel audio signals may include spoken utterancesspeech from one or more speakers as well as undesired audio, such as noise from a household appliance. The second metal plate is electrically connected with the second wiring pattern and the first wiring pattern, respectively, by means of a via and by means a via, respectively.