| 摘要 |
PROBLEM TO BE SOLVED: To provide an audio encoding processor which can reproduce second without causing the sudden changes of sound levels nor generating noise due to the changes. SOLUTION: This audio processor 30 includes a dual port memory 31, which stores the audio data supplied from an audio input pin, a register 32 which holds a pause indication signal, a register 33 which holds an audio-encoding indication signal, a processor 35 which applies the audio encoding processing to the audio data stored in the memory 31, an audio frame pulse generator 36 which generates an audio frame pulse and generates an interrupt to the processor 35 to start the audio encoding processing, a FIFO(first in first out) memory 34 which stores the audio encoding data processed by the processor 35 and outputs these data in a FIFO system via an audio-processing data output pin and a memory 37 which holds various parameters.
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