PROBLEM TO BE SOLVED: To send or receive digital data such as audio data with a smaller number of frames.;SOLUTION: An audio transmission frame F includes multiple channel audio fields F4, F5 and F50 in each of which music data associated with one of multiple channels CH1 to CH6 and the channel number associated with the music data are recorded. A different channel number CH1 to CH6 is stored in each of the channel audio fields F4, F5 and F50.;COPYRIGHT: (C)2012,JPO&INPIT
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