A High-speed Architecture for Adpcm Codec'
نویسندگان
چکیده
A pipelined architecture for adaptive pulse code modulation (ADPCM) is presented. The architecture is developed by the application of relaxed fo rm of look-ahead. The hardware overhead is only the the pipelining latches and is independent of the number of quantizer levels, the predictor order and the pipelining level. The codec latency is smaller than the level of pipelining. Under the assumption of small quantization error, the convergence properties of the pipelined architecture are compared with that of the serial one. Speech and image coding examples are presented to support the conclusions in this paper.
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