G.723

G.723 is an ITU-T standard speech codec using extensions of G.721 providing voice quality covering 300 Hz to 3400 Hz using Adaptive Differential Pulse Code Modulation (ADPCM) to 24 and 40 kbit/s for digital circuit multiplication equipment (DCME) applications. ^[1]

7 relations: Adaptive differential pulse-code modulation, Codec, Digital Circuit Multiplication Equipment, G.723.1, G.726, ITU-T, List of codecs.

Adaptive differential pulse-code modulation

Adaptive differential pulse-code modulation (ADPCM) is a variant of differential pulse-code modulation (DPCM) that varies the size of the quantization step, to allow further reduction of the required data bandwidth for a given signal-to-noise ratio.

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Codec

A codec is a device or computer program for encoding or decoding a digital data stream or signal.

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Digital Circuit Multiplication Equipment

Digital Circuit Multiplication Equipment (DCME) was a type of voice compression equipment that is installed at either end of a long-distance link (typically communications satellite or submarine communications cable).

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G.723.1

G.723.1 is an audio codec for voice that compresses voice audio in 30 ms frames.

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G.726

G.726 is an ITU-T ADPCM speech codec standard covering the transmission of voice at rates of 16, 24, 32, and 40 kbit/s.

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ITU-T

The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications.

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List of codecs

The following is a list of compression formats and related codecs.

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Redirects here:

G723.

References

[1] https://en.wikipedia.org/wiki/G.723

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