Audio signal encoding method combining codes having...

Details Audio signal encoding method combining codes having... Audio signal encoding method combining codes having...

2007-05-22

2007-05-22

{hacek over (S)}mits, Talivaldis Ivars (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S200100, C704S248000, C704S501000, C704S502000, C704S503000

Reexamination Certificate

active

10433054

ABSTRACT:
A system for transmitting audio signals over a telecommunications link generates the signals as two or more alternative feeds, for example at different data rates. The two feeds are encoded using coding methods having a frame structure with different frame lengths. To facilitate switching between the two, the input signal is notionally divided into temporal portions and each is coded by taking it, plus enough of the next (or preceding) portion to make up a whole number of frames, and encoding it, whereby the encoded portions overlap—at least for one of the feeds. The overlap is lost upon decoding by discarding duplicate material.

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