Analog Audio Classification Using Device Impedance Characteristics
Abstract
This paper provides information about a taxonomy to classify analog audio devices (microphones, headsets, and speakers) using impedance characteristics of the selected device. This information can be used by PC analog audio systems like the AC’97 CODEC to provide a rudimentary mechanism to detect jack presence and device type enumeration. Topics for this white paper will include testing methodology, data analysis, and a proposal for the classification taxonomy.
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