| 摘要 |
PURPOSE: A speaker system with an universal bus device is provided to supply a sound effect such as equalizer, 3D sound, and loudness by processing audio signal. CONSTITUTION: An USB port(821) is connected to an USB cable and transmits/receives a digital audio signal to/from computer. An USB interface(822) is connected to the USB port and the speaker system and transmits the digital audio data based on an USB communications protocol. An USB interface supplies power to the USB port. An USB controller(823) stores configuration information including a connection position from the function of the USB device and the USB host. |
