Synchronous decoding of packetized audio for different reproduct

Details Synchronous decoding of packetized audio for different reproduct Synchronous decoding of packetized audio for different reproduct

1998-12-04

1999-11-16

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

704201, G10L 302

Patent

active

059874180

ABSTRACT:
Dolby AC-3 and MPEG-2 audio permit the transmission of audio signals in packet form, via more than two independent audio channels. If a reproduction device has only a two channel audio decoder an external multi channel audio decoder may be used for multi channel audio reproduction. In this instance, packetized signal is received by a first decoder and is decoded for a first mode of reproduction and applied to a reproduction device. The received signal is unpacked in the first decoder and stored in memory. The stored signal is reformatted for application to a second decoder for decoding and reproduction according to a second mode of reproduction.

REFERENCES:
patent: 4805217 (1989-02-01), Morihiro et al.
patent: 5502496 (1996-03-01), Hailey et al.
patent: 5659793 (1997-08-01), Escobar et al.
patent: 5748835 (1998-05-01), Lee
patent: 5774857 (1998-06-01), Newlin

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