Data transmission method for digital audio signals

摘要

A data communication technique enables a reduction in the number of terminals in equipment for inputting or outputting a real time digital signal such as a digital audio signal and a music/musical instrument signal. A first converter (6) and a second converter (7) are provided with a function of mutual conversion between a signal format of a digital audio interface and a signal format of IEEE-1394. For example, it is possible to transmit a signal of a digital audio interface outputted from a first CD player (1) to the first converter (6), to convert the signal there into a packet of IEEE-1394 isochronous transmission format and transmit it to the second converter (7), and to return the packet to the digital audio interface and record a digital audio signal in an MD recorder (3). When a converter having a function of mutual conversion between the MIDI signal format and the IEEE-1394 signal format is provided, it is also possible to perform bidirectional data communication among a plurality of MIDI musical instruments.