| 摘要 |
<p>Provided are a system for accompanying music and a device thereof connecting a plurality of audio output devices. The device for accompanying music comprises a sound input unit which receives an analog audio signal or a digital audio signal from a microphone, which converts a voice signal or an accompaniment signal into an electronic signal, or one or more sound devices which offer an accompaniment sound; an A/D converter which receives the inputted analog audio signal and converts the same into the digital audio signal; a control unit which converts one or more digital audio signals into Ethernet signals and transmits the same to an external audio output device; and an Ethernet communication interface which supports Ethernet communication to transmit the Ethernet signals to the external audio output device. The control unit is provided to comprise a clock synchronization unit which performs clock synchronization to receive the Ethernet signals, transmitted to the outside by exchanging periodic timing information with one or more music relay devices connected to the Ethernet, in the music relay devices at the same time, thereby minimizing audio output delays in a plurality of speakers in different positions.</p> |
