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VoIP Speech Coding: ADPCM & Speex by suntosh_14 is a document available to read on EtoBox.

What is VoIP Speech Coding: ADPCM & Speex about?

This document discusses various speech coding techniques used for voice over IP (VoIP). It introduces efficient speech coding as using digital streams to represent voice at lower bandwidths, with lower quality at lower bandwidths. It describes common coding techniques like ADPCM, CELP, and LD-CELP that balance quality and bitrate. It also discusses measuring voice quality through Mean Opinion Scores and standards like G.711, G.723.1, and G.728 for different bitrate VoIP codecs.

Author

suntosh_14

Language

EN