Question: In EVS (Enhanced Voice Services) codec, according to 3GPP standards, what is the primary purpose of using the overlap mode FULL in transitions between different window configurations for short block settings like TCX10 and TCX5?
Option 1: To enhance frequency resolution for better noise reduction
Option 2: To ensure seamless transitions between long ALDO windows and short symmetric windows (HALF, MINIMAL)
Option 3: To increase the bitrate for improved voice quality in low coverage areas
Option 4: To reduce computational complexity during mode switches
Explanation: The overlap mode FULL is utilized to facilitate smooth transitions between different window types (long ALDO windows to short symmetric windows like HALF or MINIMAL) in the context of short block configurations (e.g., TCX10, TCX5), ensuring continuity and quality in voice services during these transitions.