Question: In EVS (Enhanced Voice Services) codec, what is a key aspect of switching between primary and AMR-WB IO (Internet Protocol Overhead) modes?
Option 1: Dynamic adjustment of bitrate to prioritize voice quality over bandwidth efficiency.
Option 2: Immediate release of all shared memories and past buffers to prevent data contamination.
Option 3: Proper handling of particularities since most memories and past buffers are shared between the two modes.
Option 4: Mandatory re-initialization of the codec for each mode switch to ensure compatibility.
Explanation: The correct answer highlights the importance of managing the shared resources (most memories and past buffers) between EVS primary and AMR-WB IO modes. This nuanced understanding is crucial for seamless switching, as mishandling these shared elements could lead to errors or decreased performance in telecom networks, particularly in voice-over-internet protocol (VoIP) applications where EVS is utilized for enhanced voice quality.