Apparatus and method for generating an enhanced signal using independent noise-filling

A non-transitory digital storage medium having stored thereon a computer program for performing a method of generating an enhanced signal from an input signal, wherein the enhanced signal comprises spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being comprised in the input signal, comprising:

• mapping a source spectral region of the input signal to a target region in the enhancement spectral region, wherein, for the target region, a source region identification exists, and wherein the mapping comprises selecting the source spectral region using the source region identification and mapping the selected source spectral region to the target region;
• and
• generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source spectral region,
• when said computer program is run by a computer.

A non-transitory digital storage medium having stored thereon a computer program for performing a method for processing an audio signal, comprising:

• generating an encoded signal from the audio signal;
• and
• a method of generating an enhanced signal from an input signal, wherein the enhanced signal comprises spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being comprised in the input signal, comprising:
• mapping a source spectral region of the input signal to a target region in the enhancement spectral region, wherein, for the target region, a source region identification exists, and wherein the mapping comprises selecting the source spectral region using the source region identification and mapping the selected source spectral region to the target region;
• and
• generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source spectral region,
• wherein the encoded signal is subjected to a predefined processing in order to generate the input signal into the method for generating the enhanced signal,
• when said computer program is run by a computer.