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a-law

a-law

ITU-T (International Telecommunications Union-Telecommunication Standardization Sector) companding standard used in the conversion between analogue and digital signals in PCM (Pulse Code Modulation) systems. In contrast to the North American m-law, a-law provides a constant signal to distortion ratio over a broader dynamic range of analogue input signals at the expense of a poorer signal to distortion ratio for low level signals.

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