| 摘要 |
In an audio network system constructed from a main node (1, 60) and a plurality of satellite nodes (2a - 2h, 61 - 64) each having a plurality of ports, the main node generates and transmits a main packet including audio signals of a plurality of channels. Each satellite node selects one of the plurality of ports in turn, and confirms whether the main packet arrives at the selected port every predetermined period or not. When the main packet arrives at the selected port every predetermined period, the main packet is received via the port by continuing selection of the port. In the case where reception of the main packet is lost, one is selected from the plurality of ports in turn, the operation to confirm arrival of the main packet is restarted, and another port at which the main packet arrives at the present stage is automatically found. This makes it possible to automatically change routes by a simple control when a failure occurs in the audio network system.
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