A piezoelectric vibrator having excellent shock resistance and high reliability is offered. The self-service terminal loads an executable transaction application program via the wireless communication port to a user’s portable electronic device when the user’s portable electronic device moves into the vicinity of the wireless communication port. The chip package includes contact pads in the active region for mating with chip contacts of a chip. The dicing tape that is affixed to the semiconductor wafer is held by a holding jig. The plurality of programs are encoded using a plurality of encoders, a combined encoder buffer, and Tl,Ff,picType to form a plurality of variable bit rate compressed bit streams. A display then displays the waveform representation of the audio signal and the corresponding gain reduction.