Audio encoding/decoding scheme having a switchable bypass

Details Audio encoding/decoding scheme having a switchable bypass Audio encoding/decoding scheme having a switchable bypass

G - Physics

10

L

G10L 19/14 (2006.01)

Patent

CA 2727883

An apparatus for encoding comprises a first domain Converter (510), a switchable bypass (50), a second domain Converter (410), a first processor (420) and a second processor (520) to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain Converter allow the generation of a decoded audio signal with high quality and low bit rate.

L'invention porte sur un appareil de codage, lequel appareil comprend un premier convertisseur de domaine (510), une dérivation pouvant être commutée (50), un second convertisseur de domaine (410), un premier processeur (420) et un second processeur (520) afin d'obtenir un signal audio codé comportant des parties de signal différentes représentées par des données codées dans des domaines différents, qui ont été codées par des algorithmes de codage différents. Des étages de décodage correspondants dans le décodeur ainsi quune dérivation pour contourner un convertisseur de domaine permettent la génération d'un signal audio décodé avec une qualité élevée et un bas débit de bits.

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