Question: At what sampling rate are the Linear Predictive (LP) analysis, Long-Term Prediction (LTP), Voice Activity Detection (VAD) algorithm, and signal processing performed in the Enhanced Voice Services (EVS) codec?
Option 1: 8 kHz
Option 2: 16 kHz
Option 3: 12.8 kHz
Option 4: 44.1 kHz
Explanation: In the context of Enhanced Voice Services (EVS) codec, critical signal processing components like Linear Predictive analysis, Long-Term Prediction, and Voice Activity Detection are optimized at a specific sampling rate. The correct sampling rate for these processes is 12.8 kHz, which strikes a balance between voice quality and bandwidth efficiency, ensuring clear voice transmission over telecom networks while managing resource utilization effectively.