Audio equipment and signal processing method and system

The invention provides audio equipment, a signal processing method and a signal processing system. At least part of the electronic equipment is accommodated in a slot on the first surface of the expansion equipment body, so that the electronic equipment and the audio equipment can be in data connection; if the audio device outputs the sound from the electronic device, the user sends a voice instruction, a first audio acquisition device, close to the audio output device, of the audio device acquires a first audio. A second audio acquisition device arranged far away from the audio output deviceis used for acquiring a second audio; the signal intensity of the sound output by the audio output device and included in the first audio is high, and the signal intensity of the voice instruction sent by the user and included in the second audio is high, so that the first audio is used for processing the second audio, the third audio capable of being subjected to audio recognition by the audio processing device is accura