Apparatus and method for digital audio using international standard broadcasting system

摘要

The present invention is to provide an international standard for broadcasting digital audio device and a control method, this invention is that by receiving the analog audio signals from an analog form into a digital signal sampled at 48KHz converted to digital conversion unit; The analog-to-receiving the analog data from the digital converting section converts the I2S format or AES / EBU format, and for monitoring digital-to-analog conversion and a control unit for controlling; I2S output unit for outputting data of the I2S format of the control unit and; AES / EBU output unit for outputting data of the AES / EBU format in the control unit and; To generate the final bit stream by performing a band analysis and psychoacoustic model I2S, AES / EBU, S / - receiving the data from the I2S output portion and the AES / EBU output sub for each channel to the central control system encoder for outputting data of P DIF and format; Digital to analog conversion for output to a speaker-to-digital data of the control unit-to-analog conversion unit; AES, which receives the data from the AES / EBU format in the control unit in connection with the audio device monitors the normal operation of the AES / EBU data / EBU monitoring unit; By being constituted by S / P DIF output which outputs a S / P DIF data, the coding portion, and possible real-time processing to implement the audio device with a limited size, to configure the encoding conforming to the MPEG-2 standard to increase the compatibility of the same kind devices that would be so.