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Apparatus for modifying a sampling rate system including an apparatus for modifying a sampling rate and method for modifying a sampling rate
Apparatus for modifying a sampling rate system including an apparatus for modifying a sampling rate and method for modifying a sampling rate
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机译:用于修改采样率系统的设备,包括用于修改采样率的设备和用于修改采样率的方法
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摘要
An apparatus for modifying a sampling rate includes a forward transformer for forming a first version of a spectrogram by means of transformation with a first transformation length from an information signal with a first sampling rate. The apparatus includes a processor for forming a second version of the spectrogram with a lower bandwidth than the first version. The apparatus includes a reverse transformer for forming a coarsely pre-modified information signal with a second sampling rate that is reduced with respect to the first sampling rate, by means of reverse transformation of the second version of the spectrogram with a second transformation length that is reduced with respect to the first transformation length. The apparatus includes a time domain interpolator for acquiring an information signal with a third sampling rate that is modified with respect to the second sampling rate, by means of interpolation of the pre-modified information signal.
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