| 摘要 |
The invention provides a sound-reproducing apparatus and a high frequency interpolation-processing method in each of which high frequency interpolation processing having a light burden imposed thereon can be executed. Compressed audio data is decoded by a decoder ( 202 a) and the resulting audio signal is transmitted to a harmonizer ( 209 a). Auxiliary information such as a sampling rate and a bit rate contained in the decoded audio signal is read out by a header reader ( 209 b) and is transmitted to a harmonizer ( 209 a). Communication of signals from/to respective portions is made through a bus ( 210 ). The harmonizer ( 209 a) has a preset for an interpolation band obtained in accordance with a format and a sampling frequency of the compressed audio data, and executes processing by referring to file information transmitted thereto from the header reader ( 209 b).
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