The embodiment of the invention provides a completely immersive
stereophonic sound implementation method and
system. The method comprises the steps that a front camera of a mobile terminal monitors in real time and transmits
imaging data to a DSP in real time to process; the DSP recognizes a human face according to an image
recognition algorithm and analyzes whether the human face is within a specified distance or not; human face data is acquired through switching the front camera and a rear camera of the mobile terminal, and the head rotating state of person is monitored; the rotating state of the mobile terminal is monitored through angle detection data of a built-in
gyroscope of the mobile terminal, and an actual relative rotating state between the
human head and the mobile terminal is comprehensively analyzed; and the DSP processes a standard sound source according to the calculated actual relative rotating state and adjusts virtual surround audio parameters. According to the completely immersive earphone
stereophonic sound implementation method, virtual
surround sound with an in-head effect can be completely avoided, virtual
surround sound which is consistent with image information can be realized no matter where the user head or the handheld mobile terminal stays, and the user experience is greatly improved.