Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion – With content reduction encoding
Reexamination Certificate
2004-05-17
2010-06-15
Hudspeth, David R (Department: 2626)
Data processing: speech signal processing, linguistics, language
Audio signal bandwidth compression or expansion
With content reduction encoding
C704S201000, C704S219000
Reexamination Certificate
active
07739120
ABSTRACT:
The invention relates to a method of selecting a respective coding model for encoding consecutive sections of an audio signal, 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. In general, the coding model is selected for each section based on signal characteristics indicating the type of audio content in the respective section. For some remaining sections, such a selection is not viable, though. For these sections, the selection carried out for respectively neighboring sections is evaluated statistically. The coding model for the remaining sections is then selected based on these statistical evaluations.
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Hudspeth David R
Neway Samuel G
Nokia Corporation
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