An acoustic model registration apparatus, an talker recognition apparatus, an acoustic model registration method and an acoustic model registration processing program, each of which prevents certainly an acoustic model having a low recognition capability for talker from being registered certainly, are provided. The mapping includes reference pointers to dynamic pricing content that can be returned in response to search requests at the search engine. A defect correction unit corrects pixel values of pixels of the image output from the image sensor, in accordance with the defect data registered in the defect data table. The value of the output signal from the magnetic field sensor is correlated to the magnitude of the magnetic field at the location of the magnetic recording head through calibration.