Patent Document ID: 9536533
Application ID: 14574830
Patent Flag: 1

Claim One:
1. A linear prediction based audio decoder comprising: a probability distribution estimator configured to determine, for each of a plurality of spectral components, a probability distribution estimation from linear prediction coefficient information comprised in a data stream into which an audio signal is encoded; an entropy decoding and dequantization stage configured to entropy decode and dequantize a spectrum composed of the plurality of spectral components from the data stream using the probability distribution estimation as determined for each of the plurality of spectral components; and a filter configured to shape the spectrum according to a transfer function depending on a linear prediction synthesis filter defined by the linear prediction coefficient information, wherein the probability distribution estimator is configured to determine a spectral fine structure from long-term prediction parameters comprised in the data stream and determine, for each of the plurality of spectral components, a probability distribution parameter such that the probability distribution parameters spectrally follow a function which multiplicatively depends on the spectral fine structure, wherein, for each of the plurality of spectral components, the probability distribution estimation is a parameterizable function parameterized with the probability distribution parameter of the respective spectral component.