Patent ID: 11935546
Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. An audio communication method that comprises:
obtaining a sequence of quantized error values from an audio data stream;
using corresponding envelope estimates to produce a sequence of reconstructed error values based on the sequence of quantized error values;
combining the sequence of reconstructed error values with a sequence of predicted audio sample values to produce a sequence of reconstructed audio samples;
producing the sequence of predicted audio sample values based on the sequence of reconstructed audio samples; and
deriving the corresponding envelope estimates by:
applying a dynamic gain to the reconstructed error values to produce a sequence of update values; and
combining each of the update values with the corresponding envelope estimate to produce a subsequent envelope estimate,

wherein the dynamic gain decreases from a maximum gain value to a minimum gain value as the corresponding envelope estimate increases.