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An A-law algorithm is a complex algorithm used in audio processing, and in digitizing analog signals. Its use in European engineering is contrasted with the mu-law algorithms used in American and Japanese engineering systems.
“A-law” is used to optimize the dynamic range of an analog signal. This type of design can be used to deliver voice or audio data with less bandwidth. These audio compression schemes are maintained by the ITU Telecommunication Standardization Sector (ITU-T). Some of the benefits of these algorithmic solutions involve the ability to achieve resolution for the lower-amplitude signals while still delivering dynamic range, and the relatively small amount of processing power needed to decode signals compressed with A-law compressions.