Patent ID: 7932456

Claim:
A music replay circuit comprising: a header analyzing unit which analyzes a header included in each of a plurality of frames in a data stream which are compressed music data, and extracts bitrate information included in the header; a decoder which decodes the data stream analyzed by the header analyzing unit; a high-frequency correction unit which generates data in which high-frequency music data is interpolated, for music data decoded by the decoder; and a process setting unit which controls a process applied by the high-frequency correction unit, based on the bitrate information extracted by the header analyzing unit, wherein the process setting unit controls the process by the high-frequency correction unit according to the bitrate information extracted for each frame; the process setting unit switches, based on the bitrate information, whether or not the process by the high-frequency correction unit is executed; and the process setting unit switches whether or not the process by the high-frequency correction unit is executed in synchronization with a timing when the decoder decodes and outputs a frame from which the header is extracted.