| 摘要 |
A USB audio device includes a USB connector for connection to a general purpose computer, a USB controller connected to the USB connector for receiving an digitized audio signal from the computer and transmitting a digitized microphone signal and a controlling signal to the computer system, a digital/analog converter connected to the USB controller for processing the audio signal and the microphone signal and an earset socket connected to the digital/analog converter and having a left signal contact, a right signal contact, a ground contact, and a microphone signal contact. |
