A-Law and Mu-Law are Pulse Code Modulation (PCM) techniques that dictate forms of compression for audio signals. They are widely-used standard methods of coding voice as they improve signal-to-noise ratio without increasing the amount of data. Mu-Law is a standard in North America; A-Law in Europe.
A companding method of digitally encoding analogue signals that is mostly used in Europe and elsewhere.
Companding/encoding law commonly used in Europe.
8 bit PCM Binary code. The codes are used almost universally for PCM digital switching and transmission. When a reference is made to PCM it is these codes which are being referred to (A-Law version in Europe and µ-Law version in North America).
A lossy compression algorithm that converts an analog signal from 16-bit to 8-bit, and modifies the dynamic range of the signal for digitizing. Commonly used outside of the United States.
voice compression technique commonly used in Europe.
A pulse-code modulation (PCM) algorithm used in digitizing telephone audio signals in E-1 areas.
ITU-T companding standard used in the conversion between analog and digital signals in PCM systems. A-law is used primarily in European telephone networks and is similar to the North American µ-law standard.
audio compression standard, used world-wide except in the US, Canada, and Japan, which use u-law.
A companding technique commonly used in Europe. Standardized as a 64-kbps codec in G.711.
European quantizing method for voice PCM in G.711.
The European and worldwide (not North America and Japan) standard for nonuniform quantising logarithmic compression. A-Law is used as the European telephony standard.
An encoding scheme that determines how an analog speech signal is converted to a digital signal. A-law encoding is used in Europe. The other algorithm, mu-law, is used in North America and Japan. See also mu-law.
A CEPT standard algorithm that describes the nonlinear compression performed in the analog-to-digital conversion process of PCM systems used in Europe and most other countries. See Mu-law.