Patent Document ID: 7739120
Application ID: 10847651
Patent Status: 1

Claim One:
1. A method of selecting a respective coding model for encoding consecutive sections of an audio signal said method comprising: selecting for each section of said audio signal a coding model based on at least one signal characteristic indicating the type of audio content in the respective section, if said at least one signal characteristic unambiguously indicates a particular type of audio content, wherein at least one coding model optimized for a first type of audio content and at least one coding model optimized for a second type of audio content are available for selection, and wherein said first type of audio content is speech and wherein said second type of audio content is audio content other than speech; and selecting for each remaining section of said audio signal, for which said at least one signal characteristic does not unambiguously indicate a particular type of audio content, either said coding model optimized for said first type of audio content or said coding model optimized for said second type of audio content based on a statistical evaluation of the coding models which have been selected based on said at least one signal characteristic for neighboring sections of the respective remaining section, wherein said statistical evaluation comprises counting for each of said coding models the number of said neighboring sections for which the respective coding model has been selected, and wherein the number of neighboring sections for which said coding model optimized for said first type of audio content has been selected is weighted higher in said statistical evaluation than the number of sections for which said coding model optimized for said second type of audio content has been selected.