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Adaptive Multi-Rate (AMR) is a voice compression format used in the 3GPP (3 rd Generation Partnership Project) standard. Explain how, in poor channel conditions, AMR

Adaptive Multi-Rate (AMR) is a voice compression format used in the 3GPP (3^rd Generation Partnership Project) standard. Explain how, in poor channel conditions, AMR can trade-off between its channel-coding and source-coding capability to ensure a minimum quality-of-service for the transmitted voice signal. Answer in 100150 words.

(5 marks)

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