Digital Audio Effects Processor

Design a digital audio effects processor capable of performing various audio effect processing on speech signals. Requirements: (1) Input speech signal source must be collected from real-world environments; (2) Implement at least 3 audio processing functions: 1. Voice recognition for 5 project team members; 2. Noise reduction for at least 3 types of noise in real speech samples exceeding 10 seconds; 3. Equalizer functionality; (3) Control via human-machine interface with audio output through speakers/headphones.