Apparatus and method for removing undesired auditory roughness
OwnerSascha DISCH, Steven VAN DE PAR +2inventors
InventorsSascha DISCH, Steven VAN DE PAR, Andreas NIEDERMEIER, Bernd EDLER
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Abstract
An apparatus for processing an audio input signal to obtain an audio output signal according to an embodiment. The apparatus has a signal analyser configured for determining information on an auditory roughness of one or more spectral bands of the audio input signal. Moreover, the apparatus has a signal processor configured for processing the audio input signal depending on the information on the auditory roughness of the one or more spectral bands.
Claims41
An apparatus for processing an audio input signal to acquire an audio output signal, wherein the apparatus comprises:
- a signal analyser configured for determining information on an auditory roughness of one or more spectral bands of the audio input signal, and
- a signal processor configured for processing the audio input signal depending on the information on the auditory roughness of the one or more spectral bands.
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An audio encoder for encoding an initial audio signal to acquire an encoded audio signal and auxiliary information, wherein the audio encoder comprises comprising:
- an encoding module for encoding the initial audio signal to acquire the encoded audio signal, and
- a side information generator for generating and outputting the auxiliary information depending on the initial audio signal and further depending on the encoded audio signal,
- wherein the auxiliary information comprises an indication that indicates one or more spectral bands out of a plurality of spectral bands, for which information on an auditory roughness shall be determined on a decoder side.
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A method for processing an audio input signal to acquire an audio output signal, wherein the method comprises:
- determining information on an auditory roughness of one or more spectral bands of the audio input signal, and
- processing the audio input signal depending on the information on the auditory roughness of the one or more spectral bands.
A method for encoding an initial audio signal to acquire an encoded audio signal and auxiliary information, wherein the method comprises:
- encoding the initial audio signal to acquire the encoded audio signal, and
- generating and outputting the auxiliary information depending on the initial audio signal and further depending on the encoded audio signal,
- wherein the auxiliary information comprises an indication that indicates one or more spectral bands out of a plurality of spectral bands, for which information on an auditory roughness shall be determined on a decoder side.
Dependencies are inferred from the claim text.