Patent ID: 7248548

Claim:
An audio player which has a function of audio-processing data from a digital input, extracting, simultaneously with audio processing, sub-Q data in user data to be digitally input, synchronizing the sub-Q data with audio data and then outputting the sub-Q data, the audio player comprising: a reproduction section; and a control section for controlling the reproduction section, wherein the reproduction section includes a data receiving section for extracting audio data and sub-Q data from input data, a sub-Q data table for storing extracted sub-Q data, an audio data storage buffer for storing extracted audio data, an input processing section for managing storage of data into the sub-Q data table and the audio data storage buffer, an audio processing section for performing audio processing to the audio data stored in the audio data storage buffer, and a sub-Q data processing section for synchronizing the sub-Q data stored in the sub-Q data table with the audio data and then outputting the sub-Q data, and wherein the audio player has a function of automatically changing itself to a mode for outputting only the audio data when underflow of the sub-Q data table occurs.