IMPROVED METHOD FOR ENCODING/DECODING A STEREO DIGITAL STREAM AND ASSOCIATED ENCODING/DECODING DEVICE

摘要

The invention relates substantially to a method for encoding and decoding a digital audio signal consisting of an original right-hand signal thereof (SDO) and an original left-hand signal thereof (SGO), characterized in that said method comprises the following steps: combining (3) the original right-hand signal thereof (SDO) and the original left-hand signal thereof (SGO) to obtain a single combined signal (SC), encoding the combined signal (SC) by means of a standard encoder (5) to obtain a compressed combined signal (SCC), decoding the compressed combined signal (SCC) by means of a standard decoder (8) to obtain a decompressed combined signal (SCD) and, after decoding, generating a reconstructed right-hand signal thereof (SDR) and a reconstructed left-hand signal thereof (SGR) from the decompressed combined signal (SCD), which are decorrelated from each other. The invention further relates to a treble-generating module (35), which enables the high-frequency component (SHF) of the right-hand (SDR) or left-hand (SGR) signals thereof to be recreated, which signals had been deleted as a result of compression.