Apparatus, method and computer program for generating a representation of a Signal bandwidth is Expanded on the basis of Representation of an input Signal using a combination of an extension of bandwidth expansion of Harmonic and non Harmonic bandwidth

摘要

An apparatus for generating a representation of a Signal bandwidth is Expanded on the basis of the representation of an input Signal comprises a phase vocoder set to obtain the values of the Spectral representation of a Signal of the first Patch of ANC Ho Band Expanded on the basis of the representation of the input Signal.The Apparatus also includes a Copier copy configured values for a series of values in the Spectral representation of the first Patch, values that are provided by the phase vocoder to obtain a series of values in the Spectral representation A Second Patch,Where the second patch is associated with higher frequencies the first Patch. The Apparatus is configured to obtain the representation of the signal bandwidth is Expanded using the values of the Spectral representation of the first Patch and the values of the Spectral representation of the second Patch.