DEVICE, METHOD AND COMPUTER PROGRAM FOR FREELY SELECTABLE FREQUENCY SHIFTS IN THE SUB-BAND DOMAIN.

摘要

A device (100) for generating a frequency-shifted audio signal on the basis of an audio input signal is produced. The device (100) comprises an interface (110) and a frequency shift unit (120). The interface (110) is designed to receive the audio input signal. The frequency shift unit (120) is designed to generate the frequency-shifted audio signal. The frequency shift unit (120) is also designed to generate one of the second sub-band values on the basis of one of the first sub-band values such that the second phase angle of said second sub-band value differs by a phase angle difference from the first phase angle of said first sub-band value, the phase angle difference depending on a piece of frequency information that indicates the frequency difference by which the audio input signal has to be shifted in order to obtain the frequency-shifted audio signal, and the phase angle difference depending on a frequency band width of one of the first sub-bands.