Processing digital data

Details Processing digital data Processing digital data

2011-03-08

2011-03-08

Albertalli, Brian L (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

C704S501000

Reexamination Certificate

active

07904301

ABSTRACT:
An original digital audio signal represents unimpaired audio information. The digital audio signal is compressed and encrypted without substantial impairment to produce a first audio signal. A second, unencrypted, audio signal is produced. The first and second audio signals are combined. Preferably the first audio signal is losslessy compressed. The second audio signal may be an impaired version of the original digital audio signal.

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