Scalar quantization for audio coding

Abstract

There are described techniques for encoding and decoding audio signals. A decoder, configured to generate an audio signal from a coded signal representing the audio signal, may include: a coded signal reader, configured to read the coded signal, thereby providing a plurality of indexes; a scalar dequantization module, including: a plurality of quantization index converters, each quantization index converter being configured to convert an index of the plurality of indexes onto a corresponding latent scalar value, so that a plurality of latent scalar values form a first latent audio signal representation of the audio signal; and a first learnable section to provide a second latent representation from the first latent audio signal representation; a second learnable section including at least one learnable layer and configured to generate the audio signal from the second latent audio signal representation.

Dependencies are inferred from the claim text.