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    • 10. 发明申请
    • SOUND-REPRODUCING APPARATUS AND HIGH FREQUENCY INTERPOLATION-PROCESSING METHOD
    • 声音再现设备和高频插值处理方法
    • US20070216546A1
    • 2007-09-20
    • US11488829
    • 2006-07-19
    • Masao IwasakiIsao Kaneko
    • Masao IwasakiIsao Kaneko
    • H03M7/00
    • G10L21/038
    • 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 (202a) and the resulting audio signal is transmitted to a harmonizer (209a). Auxiliary information such as a sampling rate and a bit rate contained in the decoded audio signal is read out by a header reader (209b) and is transmitted to a harmonizer (209a). Communication of signals from/to respective portions is made through a bus (210). The harmonizer (209a) 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 (209b).
    • 本发明提供了一种声音再现装置和高频插值处理方法,其中可以执行具有轻负载的高频插值处理。 压缩音频数据由解码器(202a)解码,并将所得到的音频信号发送到协调器(209a)。 包含在解码音频信号中的诸如采样率和比特率之类的辅助信息由标题阅读器(209b)读出,并传送给协调器(209a)。 通过总线(210)进行来自/到相应部分的信号的通信。 协调器(209a)具有根据压缩音频数据的格式和采样频率获得的内插频带的预设,并且通过参考从头读取器(209b)发送的文件信息来执行处理。