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    • 10. 发明授权
    • Signal processing apparatus
    • 信号处理装置
    • US09130526B2
    • 2015-09-08
    • US13677910
    • 2012-11-15
    • KABUSHIKI KAISHA TOSHIBA
    • Takashi SudoMasataka Osada
    • H03G3/20H03G3/32H03G9/00H03G9/18
    • H03G3/20H03G3/32H03G9/005H03G9/18
    • A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.
    • 信号处理装置被配置为在第一频率范围内以有限带宽改变输入信号的音量水平或频率特性。 该装置包括:信息提取单元,被配置为在与第一频率范围不同的第二频率范围内从具有有限带宽的收集信号中提取第二频率特征信息; 频率特性信息扩展单元,被配置为从由所述信息提取单元提取的第二频率特性信息中估计第一频率特性信息,所述第一频率特性信息包括所述第一频率范围; 以及信号校正单元,被配置为根据由频率特性信息扩展单元获得的第一频率特性信息来改变输入信号的音量水平或频率特性。