Disclosed are an audio processing method, apparatus and system. The processing method is applied to a sound pickup, and the sound pickup is connected to a controller. The method comprises: receiving tone instruction information sent by a controller (S101); and analyzing the tone instruction information, and carrying out, according to the tone instruction information, tone processing on audio that is picked up, wherein the tone instruction information comprises tone addition instruction information and/or tone change instruction information (S102). The selection of various tones in an audio processing process is realized, the requirement for the integration of related functions is met, and the user experience is improved.