10.1. Function Overview

10.1.1. Purpose

The AUDIO module provides audio functions for multimedia applications, including audio addition and processing, to improve the overall audio experience. The module contains five submodules: audio input, audio output, voice quality enhancement, audio encoding, and audio decoding.

10.1.2. Definitions and Abbreviations

Abbreviated name, acronym, or term	Definition Definition
AI	Audio Input: audio input module
AO	Audio Output: audio output module
AENC	Audio Encode: audio encoding module
ADEC	Audio Decode audio decoding module
VQE	Voice Quality Enhancement voice quality enhancement module
RES	Resample resampling
AGC	Automatic gain control automatic gain control
ANR	Active noise reduction Audio Noise Reduction
AEC	Acoustic echo cancellation acoustic echo cancellation
Kernel Layer	Linux kernel layer
Multimedia Framework	multimedia framework
Middleware	middleware