NON-LINEAR INVERSE CODING OF MULTICHANNEL SIGNALS

摘要

Upmix or coding apparatus for an audio signal, having: an inverse coding apparatus for determining a first channel and a second channel by means of linear inverse coding from an input signal; characterized by a first gain (50001) connected downstream of the inverse coding apparatus in the first channel; or a first gain (60001) connected downstream of the inverse coding apparatus in the first channel and a second gain (60002), which is different from the first gain (60001), connected downstream of the inverse coding apparatus in the second channel.

主权项

1. Upmix or coding device for an audio signal, comprising:
an inverse coding device for determining a first channel and a second channel of the audio signal through linear inverse coding from an input signal; a first gain connected downstream to the inverse coding device in the first channel for multiplying the first channel with a first factor; or a first gain connected downstream of the inverse coding device in the first channel for multiplying the first channel with a first factor and a second gain connected downstream of the inverse coding device in the second channel for multiplying the second channel with a second factor, that is different from the first factor, wherein the upmix or coding device is designed for producing or further processing the first channel multiplied with the first factor without combination with the second channel, and/or for producing or further processing the second channel multiplied with the second factor without combination with the first channel.