CN105518777A

5G,4G,3G

Title

Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domain

Application Number:

CN2014841248

Publication Date:

20-04-2016

Current Assignee:

Family ID:

Application Date:

15-07-2014

Declaring Company:

Publication Country:

US

Priority Date:

22-07-2013

Title

Apparatus and method for encoding or decoding an audio signal with intelligent gap filling in the spectral domain

Application Number:

CN2014841248

Family ID:

Publication Country:

US

Publication Date:

20-04-2016

Application Date:

15-07-2014

Priority Date:

22-07-2013

Current Assignee:

Declaring Company:

Abstract  Abstract

A device for decoding encoded audio signal wherein the device comprises: frequency spectrum domain audio decoder (112) for decoding the first generating the first group the first frequency spectrum part of expression the decoding comprising representing the first frequency spectrum resolution ratio parametric decoder (114) for decoding the second generating the second group the second frequency spectrum part of expression the second decoding expression with the second frequency spectrum resolution ratio is lower than the first frequency spectrum resolution ratio of the frequency regenerator (116) frequency spectrum envelope information used for the first frequency spectrum and the second frequency spectrum part of part use for regeneration with the first frequency spectrum resolution ratio of each of the second frequency spectrum reconsitution and part and frequency spectrum time converter (118) used for using the first decoding expression and reconsitution of the second frequency spectrum conversion part for representing time.

An apparatus for decoding an encoded audio signal comprises a spectral domain audio decoder (112) for generating a first decoded representation of a first set of first spectral portions the decoded representation having a first spectral resolution; a parametric decoder (114) for generating a second decoded representation of a second set of second spectral portions having a second spectral resolution being lower than the first spectral resolution; a frequency regenerator (116) for regenerating every constructed second spectral portion having the first spectral resolution using a first spectral portion and spectral envelope information for the second spectral portion; and a spectrum time converter (118) for converting the first decoded representation and the reconstructed second spectral portion into a time representation.

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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

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