| Summary: | 碩士 === 大同大學 === 通訊工程研究所 === 102 === The 3-dimension(3D) Audio System utilizes a set of speaker or earphone to identify the different locations of sound source around the listeners, creating the virtual real 3D audio. To generate a 3D audio, the research is focusing on two aspects: the sense of space and the sense of direction. Once the 3D audio has been created, the listener can directly experience effect of the 3D audio via the earphone. However, there is a crosstalk problem which will distract the quality of audience’s experiencing the 3D audio. Thus, the most immersive experience of 3D audio can only be made by resolving the crosstalk problem.
This paper is mainly divided into two phases: First, the sound of the 3D audio is created by using the database of the Head Related Transfer Function (HRTF) and plays with the earphone. Second, the sound of the 3D audio can further be made with a pair of speaker to ease the crosstalk problem. In terms of that, a crosstalk cancellation system is designed to remove the crosstalk.
Through the experiment of the 3D audio, it concludes that the 3D audio effect within the earphone can be created by using the database of the HRTF. In addition, the crosstalk problem is literally controlled to some extent by conducting the crosstalk cancellation system. Thus, this research indicates that once the environmental information is well regulated, it is more easily to suppress the crosstalk problem.
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