Communication device and data processing method

A data processing method implemented in a communication device, the method comprising:

• monitoring reception intervals of packets received by a communication unit, and generating and outputting a target value as a parameter for a reproduction control process based on a variation in the packet reception intervals, the monitoring and the generating and outputting the target value being performed by a packet reception state monitoring unit;
• and
• performing reproduction control in accordance with the target value generated by the packet reception state monitoring unit, the reproduction control being performed by a reproduction control unit,
• wherein an audio reproduction speed or image frame reproduction is controlled in the reproduction control, in which the audio reproduction speed is controlled in accordance with the target value, in which the target value is generated by calculating a target stored data number as a target number of audio packets to be stored in a memory based on the variation in the reception intervals of audio packets received by the communication unit, and in which the audio reproduction speed is controlled in accordance with a determination whether a difference between the target stored data number and a memory-stored data number that is the number of audio packets actually stored in the memory changes successively in a same direction.