Speech coding

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Speech coding - converts the speech signal from analog to digital form so that it can be transmitted over a telecommunications link or computer network.

The process of changing an analog signal to a stream of coded data consists of three steps:

Compression methods

The most popular speech encoding methods are: Modulation methods

The most popular codecs used for speech coding:

When establishing a connection, both telecom devices, which can use the codecs and choose the optimum. The key to ensuring bandwidth is that a codec, especially one that uses strong compression, delivers good quality, while not overly delaying the conversation. Bibliography

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