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Low-Complexity Transform Coder for Satellite Link Applications

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An audio coder system is discussed which allows the use of a 256 kbits/sec digital data channel to convey very high quality stereophonic signals. The system employs a practical implementation of adaptive transform coding to produce a low bit-rate coder with excellent sound quality and low computational complexity. A single programmable DSP chip is used to code stereophonic PCM audio data, including all data formatting, synchronization, and error correction operations.

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