A Preliminary Study Of Earphone Positioning Playback System

In an audio playback system,sound playback is only relevant to the listener's hearing.Although the development of the playback format is constantly enhancing the authenticity of digital audio,the sound field and the content of the sounds that are eventually replayed through the headphones are a fixed value,which does not match the auditory habits of the person in motion.In this paper,we will construct a prototype of immersive virtual auditory system,associate the listener's behavior with the auditory,and perfect the limitation of the traditional playback mode.In this experiment,the six-axis gyroscope original,Bluetooth module,MCU and Bluetooth headset are used to make a wearable dual-ear playback hardware which can identify the angle of head rotation.Using Max/msp,the "Fft-based_binaural_panner" element is used to collect the head angle information by the algorithm of the header correlation function,and several sound materials are processed based on this.Finally,the immersive virtual auditory system associated with the head rotation behavior is replayed in the headset.A good experience was obtained in the experiment of immersive virtual auditory system.The system has many advantages,such as the separation of sound material,the ability of behavioral experience and hardware adaptability,and has a wide range of use scenes,such as interactive space exhibition,virtual reality construction and so on.And with the hardware function and software algorithm constantly upgrade,with great development space and prospects.