Patent ID: 9659566
Date: 2017-05-23
CPC Classifications: G08C,G10L,H04L,H04N

Claim:
1. A device for generating a signal to be transmitted, comprising: an encoder for generating an encoded signal from an information signal, wherein the encoder is implemented to generate a main channel and a side channel which are decodable separate from each other and represent the information signal, and to generate the main channel and the side channel so that the side channel is more robust against transmission-channel influences than the main channel; wherein the encoder is a source encoder which is implemented to execute a time-domain/spectral-domain conversion and which provides a description of a spectral envelope for generating the side-channel coefficients using fine quantization; wherein, on a decoder side with a predetermined signal/noise ratio, a speech intelligibility is achievable; and wherein the side channel uses half or less than half as many bits as the main channel.