METHODS FOR RECEIVING DIGITAL AUDIO SIGNAL USING PROCESSOR AND CORRECTING LOST DATA IN DIGITAL AUDIO SIGNAL

摘要

A method for receiving a digital audio signal using a processor is provided, and the method includes correcting the digital audio signal from lost data, and the correcting comprises: copying frequency domain coefficients of the digital audio signal from a previous frame, adaptively adding random noise coefficients to the frequency domain coefficients copied, and scaling the random noise coefficients and the frequency domain coefficients copied to form recovered frequency domain coefficients, and producing a corrected audio signal from the recovered frequency domain coefficients, wherein the scaling is controlled with a parameter representing a periodicity or harmonicity of the digital audio signal. A method for correcting missing audio data and another method for receiving a digital audio signal using a processor are also provided.