The automated calibration (i.e. equalization of the reference speaker) is carried out with the NTi Audio measurement microphone M2010. Thereafter the smart “learn-mode” simplifies tolerance definition by feeding the system with a representative set of one or more “Golden Samples”. The flexible tolerance management automatically derives its tolerance Pass/Fail criteria. The system also supports up to five different quality clusters, which may be user-defined, such as “Excellent”, “OK”, “Acceptable”, “Class 3” and “Reject”. This allows the manufacturer to distinguish among quality classes.
System integration into existing production lines and the connection to host controllers is very simple. The extremely short test cycle time allows the microphone test system to easily cope with high volume production lines.