An ADPCM Approach to Reduce the Bit Rate of μ-Law Encoded Speech
H. W. Adelmann, Yong Ching, Benedict Götz · Bell System Technical Journal · 1979
A new rom-oriented adpcm architecture for processing μ-law encoded speech is presented. The architecture is shown to offer: (I) simple hardware realization, (ii) flexibility of algorithm modification, (iii) fixed hardware complexity with respect to numerous nonlinear processings, and (iv) excellent time-sharing capability. Performance measurements of a hardware implementation are also included.