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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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What Is G.711?

What Is G.711?

G.711, also known as Pulse Code Modulation (PCM), is a commonly used waveform codec. G.711 uses a sampling rate of 8,000 samples per second. Non-uniform quantization (logarithmic) with 8 bits is used to represent each sample, resulting in a 64 kbit/s bit rate. G.711 defines two main compression algorithms, the µ-law algorithm (used in North America & Japan) and A-law algorithm (used in Europe and the rest of the world). A-law encoding takes a 13-bit signed linear audio sample as input. μ-law encoding takes a 15-bit signed linear audio sample as input.

G.711 is simple, and provides short delay and high audio quality. G.711 has high data rate and is sensitive to errors on channels.

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Updated: 2019-05-10

Document ID: EDOC1000079719

Views: 448263

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